subject:"\[Bug 1611277\] Re\: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid"

Thank you very much! Currently the system works normally with the raid
devices loaded.

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

About your question about maximum RAID size: I cannot answer that. There
possibly are different limits on what dmraid can construct via device-
mapper (those are likely higher than 4TB). But then there might be
limits that the meta-data which the BIOS uses impose. And I have no clue
there.

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

Those packages are compiled against 14.04 user-space and should need no
update for libdevmapper.

** Attachment added: "dmraid_1.0.0.rc16-4.2ubuntu4~14.04.1_amd64.deb"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1611277/+attachment/4723895/+files/dmraid_1.0.0.rc16-4.2ubuntu4~14.04.1_amd64.deb

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

** Attachment added: 
"libdmraid1.0.0.rc16_1.0.0.rc16-4.2ubuntu4~14.04.1_amd64.deb"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1611277/+attachment/4723896/+files/libdmraid1.0.0.rc16_1.0.0.rc16-4.2ubuntu4~14.04.1_amd64.deb

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

Oh, sorry, wait a second. I think I made a mistake and compiled the
package against 16.04 user-space.

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

It says my libdevmapper (2:1.02.77) is too old, it needs (2:1.02.97)
instead. So I should install the patch after I switched the kernel?

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-19 Thread Ubuntu Foundations Team Bug Bot

** Tags added: patch

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

I'm only using Linux on this PC. But the migration process seems to
tired. Maybe I'll just stick to the dmraid if there's not major
problems.

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

So now I'll just have to install these two packages and switch to a
newer kernel to see if the fix works? Another question is that does
dmraid have maximum size limit of the raid devices (something like raid
1 up to 4TB)?

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

** Attachment added: "libdmraid1.0.0.rc16_1.0.0.rc16-4.2ubuntu4_amd64.deb"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1611277/+attachment/4723890/+files/libdmraid1.0.0.rc16_1.0.0.rc16-4.2ubuntu4_amd64.deb

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

** Attachment added: "dmraid_1.0.0.rc16-4.2ubuntu4_amd64.deb"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1611277/+attachment/4723889/+files/dmraid_1.0.0.rc16-4.2ubuntu4_amd64.deb

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

Sorry, I was distracted by other things. So I will be attaching a
proposed update to dmraid and some pre-built package to test. I just
cannot promise that change will be accepted.

About converting to mdadm: That would be an option that might be more
future proof but only if you do not want to use the RAIDed disks in
parallel with Windows. The drivers that come with the motherboard rely
on the BIOS signatures and I am not aware (I never had need, so I never
searched) of any generic RAID driver for Windows that would recognize
the DDF signatures that mdadm creates.

If you only will be using Linux it is a different story. Then moving to
mdadm (you can then use even the normal superblock format, no strict
need for DDF) would have the additional benefit of being able to replace
the motherboard or move the disks to a different computer and have the
RAID still working. But of course its a tedious task: you need some
place to backup all data, also better make sure the backup has no bits
corrupted (maybe rare but happened), erase the RAID signatures (if
possible, from the BIOS), either plug the disks to a different
controller or switch the current one into SATA/AHCI mode, set up the
mdamd RAID and finally copy the backup back (and possibly again check
for consistency). A lot of work...

** Patch added: "Proposed update for dmraid"

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1611277/+attachment/4723888/+files/disable-removable-test.debdiff

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

Sorry to bother you, since dmraid as no update anymore, so is it
recommended to use mdadm instead? Is the transfer possible or I'll have
to wipe out the whole disk and rebuild it? Thanks.

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-17 Thread Huang YangWen

Sadly, Marvell SATA controller seems to have its own configuration (I'll
try to send a mail to GigaByte support). I've checked the hotplug
related options in the BIOS, they are all turned off.

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-17 Thread Stefan Bader

The commit is a legit stable fix and part of the Ubuntu 16.04 kernel since 
version 4.4.0-18 (your dmesg shows you a re running 4.4.0-34). So unfortunately 
not helping in your case. I extracted the relevant syslog data below. >From 
that info, the two disks are connected to a Marvell controller in RAID mode.
The change you found was ignoring the HPCP bit. But a drive would still marked 
as removable if the port had a ESP bit set and the controller had a SXS 
capability set. I don't think the port bits show up in the log but the 
controller does have SXS set. So there might be a chance that in your BIOS, 
there is an option related to the Marvell controller that says "ESP" somewhere. 
And if you disable that, the drives no longer are removable.

But generally I think dmraid (and fwiw the desktop environment mounting
everything removable) uses incorrect assumptions about what removable
means. All USB disks are removable but not all removable disks are
USB...

06:00.0 RAID bus controller [0104]: Marvell Technology Group Ltd.
88SE9172 SATA III 6Gb/s RAID Controller [1b4b:9192] (rev 12) Subsystem:
Gigabyte Technology Co., Ltd Device [1458:b000]

[0.693411] ahci :06:00.0: AHCI 0001. 32 slots 2 ports 6 Gbps 0x3 
impl RAID mode
[0.693413] ahci :06:00.0: flags: 64bit ncq sntf led only pmp fbs pio 
slum part sxs 
[0.693609] scsi host8: ahci
[0.693679] scsi host9: ahci
[0.693707] ata9: SATA max UDMA/133 abar m512@0xfb41 port 0xfb410100 irq 
43
[0.693710] ata10: SATA max UDMA/133 abar m512@0xfb41 port 0xfb410180 
irq 43
[1.184050] ata10: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[1.184069] ata9: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[1.184636] ata10.00: ATA-9: ST2000DM001-1CH164, CC27, max UDMA/133
[1.184638] ata10.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 31/32), 
AA
[1.184654] ata9.00: ATA-9: ST2000DM001-1CH164, CC27, max UDMA/133
[1.184655] ata9.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 31/32), AA
[1.185166] ata10.00: configured for UDMA/133
[1.185182] ata9.00: configured for UDMA/133
[1.185306] scsi 8:0:0:0: Direct-Access ATA  ST2000DM001-1CH1 CC27 
PQ: 0 ANSI: 5
[1.185443] sd 8:0:0:0: [sdb] 3907029168 512-byte logical blocks: (2.00 
TB/1.82 TiB)
[1.185445] sd 8:0:0:0: [sdb] 4096-byte physical blocks
[1.185451] sd 8:0:0:0: Attached scsi generic sg2 type 0
[1.185525] sd 8:0:0:0: [sdb] Write Protect is off
[1.185527] sd 8:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[1.185553] sd 8:0:0:0: [sdb] Write cache: enabled, read cache: enabled, 
doesn't support DPO or FUA
[1.185577] scsi 9:0:0:0: Direct-Access ATA  ST2000DM001-1CH1 CC27 
PQ: 0 ANSI: 5
[1.185711] sd 9:0:0:0: [sdc] 3907029168 512-byte logical blocks: (2.00 
TB/1.82 TiB)
[1.185713] sd 9:0:0:0: [sdc] 4096-byte physical blocks
[1.185725] sd 9:0:0:0: Attached scsi generic sg3 type 0
[1.185782] sd 9:0:0:0: [sdc] Write Protect is off
[1.185784] sd 9:0:0:0: [sdc] Mode Sense: 00 3a 00 00
[1.185807] sd 9:0:0:0: [sdc] Write cache: enabled, read cache: enabled, 
doesn't support DPO or FUA
[1.189274] sd 8:0:0:0: [sdb] Attached SCSI removable disk

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-16 Thread Huang YangWen

Tried kernel v4.6-yakkety. Not working.

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-16 Thread Huang YangWen

Hi, is the change log of kernel 4.4.5 a valid upstream commit?

commit a55479ab637cda5ebbfdb9eb7c062bd99c13d5d9
Author: Manuel Lauss 
Date:   Sat Feb 27 16:10:05 2016 +0100

ata: ahci: don't mark HotPlugCapable Ports as external/removable

commit dc8b4afc4a04fac8ee55a19b59f2356a25e7e778 upstream.

The HPCP bit is set by bioses for on-board sata ports either because
they think sata is hotplug capable in general or to allow Windows
to display a "device eject" icon on ports which are routed to an
external connector bracket.

However in Redhat Bugzilla #1310682, users report that with kernel 4.4,
where this bit test first appeared, a lot of partitions on sata drives
are now mounted automatically.

This patch should fix redhat and a lot of other distros which
unconditionally automount all devices which have the "removable"
bit set.

Signed-off-by: Manuel Lauss 
Signed-off-by: Tejun Heo 
Fixes: 8a3e33cf92c7 ("ata: ahci: find eSATA ports and flag them as 
removable" changes userspace behavior)
Link: http://lkml.kernel.org/g/56cf35fa.1070...@redhat.com
Signed-off-by: Greg Kroah-Hartman 

From: https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.5

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-12 Thread Huang YangWen

Thanks!

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-11 Thread Stefan Bader

Yes, it sounds like that is the initial trigger. So somewhere between
3.16 and 4.4 the kernel got better in declaring which disk drives could
be hot-plugged. And the AHCI and (likely) the fakeraid modes potentially
support to hot-plug disks (you could have externally accessible drive
bays). Sometimes the BIOS allows to change the hot-plug support but not
all). If you had that BIOS option that would be a work-around for you.

But probably dmraid should not care about a drive being removable. It
probably was meant to protect against probing USB sticks and/or cdroms.
I don't know for sure. As said on some of the threads you link I would
rather not think of this as a kernel bug. It rather supports the flag
more correctly.

So if something needs to change it probably is dmraid. Unfortunately
that change might have odd consequences in other cases. So I would like
to be careful there.

** Also affects: dmraid (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: dmraid (Ubuntu)
   Importance: Undecided => Medium

** Changed in: dmraid (Ubuntu)
   Status: New => Confirmed

** Changed in: linux (Ubuntu)
   Status: Confirmed => Invalid

** Changed in: dmraid (Ubuntu)
 Assignee: (unassigned) => Stefan Bader (smb)

** Also affects: dmraid (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Changed in: linux (Ubuntu Xenial)
   Status: New => Invalid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-11 Thread Huang YangWen

I found someone has similar problem using 4.4.0 kernel in arch linux.
Are these events related?

dmraid thinks my array devices are removable (they aren't...)
https://bbs.archlinux.org/viewtopic.php?id=208580

[SOLVED] Hard disk partitions showing up as removable devices
https://bbs.archlinux.org/viewtopic.php?id=208514

ATA: All drives are marked as removable, even non-removable (for example, 
internal SATA HDD or SSD)
https://bugzilla.kernel.org/show_bug.cgi?id=111651

** Bug watch added: Linux Kernel Bug Tracker #111651
   http://bugzilla.kernel.org/show_bug.cgi?id=111651

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-11 Thread Huang YangWen

Ubuntu 14.04.4 + 4.4.0-34-generic

NOTICE: creating directory /var/lock/dmraid
WARN: locking /var/lock/dmraid/.lock
NOTICE: skipping removable device /dev/sdb
NOTICE: skipping removable device /dev/sdc
WARN: missing dm serial file for /dev/dm-0
WARN: missing dm serial file for /dev/dm-1
NOTICE: /dev/dm-1: asr discovering
NOTICE: /dev/dm-1: ddf1discovering
NOTICE: /dev/dm-1: hpt37x  discovering
NOTICE: /dev/dm-1: hpt45x  discovering
NOTICE: /dev/dm-1: isw discovering
DEBUG: not isw at 17091787776
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 17090705920
NOTICE: /dev/dm-1: jmicron discovering
NOTICE: /dev/dm-1: lsi discovering
NOTICE: /dev/dm-1: nvidia  discovering
NOTICE: /dev/dm-1: pdc discovering
NOTICE: /dev/dm-1: sil discovering
NOTICE: /dev/dm-1: via discovering
NOTICE: /dev/dm-0: asr discovering
NOTICE: /dev/dm-0: ddf1discovering
NOTICE: /dev/dm-0: hpt37x  discovering
NOTICE: /dev/dm-0: hpt45x  discovering
NOTICE: /dev/dm-0: isw discovering
DEBUG: not isw at 982805117952
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 982804036096
NOTICE: /dev/dm-0: jmicron discovering
NOTICE: /dev/dm-0: lsi discovering
NOTICE: /dev/dm-0: nvidia  discovering
NOTICE: /dev/dm-0: pdc discovering
NOTICE: /dev/dm-0: sil discovering
NOTICE: /dev/dm-0: via discovering
NOTICE: /dev/sdd: asr discovering
NOTICE: /dev/sdd: ddf1discovering
NOTICE: /dev/sdd: hpt37x  discovering
NOTICE: /dev/sdd: hpt45x  discovering
NOTICE: /dev/sdd: isw discovering
DEBUG: not isw at 2000365288448
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000364206592
NOTICE: /dev/sdd: jmicron discovering
NOTICE: /dev/sdd: lsi discovering
NOTICE: /dev/sdd: nvidia  discovering
NOTICE: /dev/sdd: pdc discovering
NOTICE: /dev/sdd: sil discovering
NOTICE: /dev/sdd: via discovering
NOTICE: /dev/sda: asr discovering
NOTICE: /dev/sda: ddf1discovering
NOTICE: /dev/sda: hpt37x  discovering
NOTICE: /dev/sda: hpt45x  discovering
NOTICE: /dev/sda: isw discovering
DEBUG: not isw at 1000204884992
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 1000203803136
NOTICE: /dev/sda: jmicron discovering
NOTICE: /dev/sda: lsi discovering
NOTICE: /dev/sda: nvidia  discovering
NOTICE: /dev/sda: pdc discovering
NOTICE: /dev/sda: sil discovering
NOTICE: /dev/sda: via discovering
no raid disks
WARN: unlocking /var/lock/dmraid/.lock

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-11 Thread Huang YangWen

Ubuntu 14.04.4 + 3.16.0-77-generic

NOTICE: creating directory /var/lock/dmraid
WARN: locking /var/lock/dmraid/.lock
WARN: missing dm serial file for /dev/dm-0
WARN: missing dm serial file for /dev/dm-1
WARN: missing dm serial file for /dev/dm-2
WARN: missing dm serial file for /dev/dm-3
NOTICE: /dev/dm-3: asr discovering
NOTICE: /dev/dm-3: ddf1discovering
NOTICE: /dev/dm-3: hpt37x  discovering
NOTICE: /dev/dm-3: hpt45x  discovering
NOTICE: /dev/dm-3: isw discovering
DEBUG: not isw at 2000313908224
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000312826368
NOTICE: /dev/dm-3: jmicron discovering
NOTICE: /dev/dm-3: lsi discovering
NOTICE: /dev/dm-3: nvidia  discovering
NOTICE: /dev/dm-3: pdc discovering
NOTICE: /dev/dm-3: sil discovering
NOTICE: /dev/dm-3: via discovering
NOTICE: /dev/dm-2: asr discovering
NOTICE: /dev/dm-2: ddf1discovering
NOTICE: /dev/dm-2: hpt37x  discovering
NOTICE: /dev/dm-2: hpt45x  discovering
NOTICE: /dev/dm-2: isw discovering
DEBUG: not isw at 2000315046912
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000313965056
NOTICE: /dev/dm-2: jmicron discovering
NOTICE: /dev/dm-2: lsi discovering
NOTICE: /dev/dm-2: nvidia  discovering
NOTICE: /dev/dm-2: pdc discovering
NOTICE: /dev/dm-2: sil discovering
NOTICE: /dev/dm-2: via discovering
NOTICE: /dev/dm-1: asr discovering
NOTICE: /dev/dm-1: ddf1discovering
NOTICE: /dev/dm-1: hpt37x  discovering
NOTICE: /dev/dm-1: hpt45x  discovering
NOTICE: /dev/dm-1: isw discovering
DEBUG: not isw at 17091787776
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 17090705920
NOTICE: /dev/dm-1: jmicron discovering
NOTICE: /dev/dm-1: lsi discovering
NOTICE: /dev/dm-1: nvidia  discovering
NOTICE: /dev/dm-1: pdc discovering
NOTICE: /dev/dm-1: sil discovering
NOTICE: /dev/dm-1: via discovering
NOTICE: /dev/dm-0: asr discovering
NOTICE: /dev/dm-0: ddf1discovering
NOTICE: /dev/dm-0: hpt37x  discovering
NOTICE: /dev/dm-0: hpt45x  discovering
NOTICE: /dev/dm-0: isw discovering
DEBUG: not isw at 982805117952
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 982804036096
NOTICE: /dev/dm-0: jmicron discovering
NOTICE: /dev/dm-0: lsi discovering
NOTICE: /dev/dm-0: nvidia  discovering
NOTICE: /dev/dm-0: pdc discovering
NOTICE: /dev/dm-0: sil discovering
NOTICE: /dev/dm-0: via discovering
NOTICE: /dev/sdd: asr discovering
NOTICE: /dev/sdd: ddf1discovering
NOTICE: /dev/sdd: hpt37x  discovering
NOTICE: /dev/sdd: hpt45x  discovering
NOTICE: /dev/sdd: isw discovering
DEBUG: not isw at 2000365288448
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000364206592
NOTICE: /dev/sdd: jmicron discovering
NOTICE: /dev/sdd: lsi discovering
NOTICE: /dev/sdd: nvidia  discovering
NOTICE: /dev/sdd: pdc discovering
NOTICE: /dev/sdd: sil discovering
NOTICE: /dev/sdd: via discovering
NOTICE: /dev/sdc: asr discovering
NOTICE: /dev/sdc: ddf1discovering
NOTICE: /dev/sdc: ddf1 metadata discovered
NOTICE: /dev/sdc: hpt37x  discovering
NOTICE: /dev/sdc: hpt45x  discovering
NOTICE: /dev/sdc: isw discovering
DEBUG: not isw at 2000398932992
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000397851136
NOTICE: /dev/sdc: jmicron discovering
NOTICE: /dev/sdc: lsi discovering
NOTICE: /dev/sdc: nvidia  discovering
NOTICE: /dev/sdc: pdc discovering
NOTICE: /dev/sdc: sil discovering
NOTICE: /dev/sdc: via discovering
NOTICE: /dev/sdb: asr discovering
NOTICE: /dev/sdb: ddf1discovering
NOTICE: /dev/sdb: ddf1 metadata discovered
NOTICE: /dev/sdb: hpt37x  discovering
NOTICE: /dev/sdb: hpt45x  discovering
NOTICE: /dev/sdb: isw discovering
DEBUG: not isw at 2000398932992
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000397851136
NOTICE: /dev/sdb: jmicron discovering
NOTICE: /dev/sdb: lsi discovering
NOTICE: /dev/sdb: nvidia  discovering
NOTICE: /dev/sdb: pdc discovering
NOTICE: /dev/sdb: sil discovering
NOTICE: /dev/sdb: via discovering
NOTICE: /dev/sda: asr discovering
NOTICE: /dev/sda: ddf1discovering
NOTICE: /dev/sda: hpt37x  discovering
NOTICE: /dev/sda: hpt45x  discovering
NOTICE: /dev/sda: isw discovering
DEBUG: not isw at 1000204884992
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 1000203803136
NOTICE: /dev/sda: jmicron discovering
NOTICE: /dev/sda: lsi discovering
NOTICE: /dev/sda: nvidia  discovering
NOTICE: /dev/sda: pdc discovering
NOTICE: /dev/sda: sil discovering
NOTICE: /dev/sda: via discovering
INFO: RAID devices discovered:

/dev/sdc: ddf1, ".ddf1_disks", GROUP, ok, 3906898096 sectors, data@ 0
/dev/sdb: ddf1, ".ddf1_disks", GROUP, ok, 3906898096 sectors, data@ 0
WARN: unlocking /var/lock/dmraid/.lock

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Title:
  Kernel

[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-11 Thread Stefan Bader

So it appears that "dmraid -r -d -d -v -v -v" would produce enough
output to at least see whether it is trying the disks which contain the
raid.

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Title:
  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-11 Thread Stefan Bader

What you see (the multipath message) is from a kernel module that gets
loaded. That does not necessarily mean it is really used. That is the
way that dmraid, lvm, multipath and mdadm work. Only mdadm is different
in using different kernel driver modules than the rest.

But in general the commands are responsible for reading meta-data from
the devices and detecting whether those contain logical devices they can
handle. Then the info is used to create a simpler representation of that
which is passed to kernel drivers. And those create the logical disks
that you then can use.

The debug data you get unfortunately does not really give a hint why the
raid is not detected. Mind, at that stage the kernel is not yet
involved. The fact that the device-mapper kernel driver has different
versions is not surprising for different kernels. The more important
number would be the ioctl-version and that is the same. But still I do
not think dmraid is already talking to device-mapper at that stage.

So the only visible difference in the debug is that one is longer than
the other (btw, the man page mentions you might get more details when
repeating the -d option, like -d -d -d). The only way to guess which
disks it looks at might be to compare the offsets to disk size. But that
is not very reliable.

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Title:
  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

I saw this line

Aug 10 11:26:09 bblabcloud kernel: [ 26.001170] device-mapper:
multipath: version 1.7.0 loaded

when the system startup.

But when I type multipath in terminal, I was told multipath is not
installed. Is the multipath in the terminal is a config tool to config
the device-mapper multipath?

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

** Attachment added: "libdmraid1.0.0.rc16_1.0.0.rc16-4.2ubuntu3_amd64.deb"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1611277/+attachment/4718232/+files/libdmraid1.0.0.rc16_1.0.0.rc16-4.2ubuntu3_amd64.deb

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Title:
  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

I got some time and did a rebuild of dmraid in Xenial, which completed.
So I am not really understanding why running dmraid in 16.04 does claim
to find nothing while it does succeed in 14.04. I am attaching the two
debs here just in case an actual rebuild produces something different
than before.

The dmraid command seems to have verbose and debug options. Maybe those
help. Or you could check /var/log/syslog to see whether running dmraid
produces some error messages...

** Attachment added: "dmraid_1.0.0.rc16-4.2ubuntu3_amd64.deb"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1611277/+attachment/4718231/+files/dmraid_1.0.0.rc16-4.2ubuntu3_amd64.deb

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

The following commands are executed in Ubuntu 14.04.4 +
3.16.0-77-generic

1. dmraid -d -r

DEBUG: not isw at 2000313908224
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000312826368
DEBUG: not isw at 2000315046912
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000313965056
DEBUG: not isw at 17091787776
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 17090705920
DEBUG: not isw at 982805117952
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 982804036096
DEBUG: not isw at 2000365288448
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000364206592
DEBUG: not isw at 2000398932992
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000397851136
DEBUG: not isw at 2000398932992
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000397851136
DEBUG: not isw at 1000204884992
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 1000203803136
/dev/sdc: ddf1, ".ddf1_disks", GROUP, ok, 3906898096 sectors, data@ 0
/dev/sdb: ddf1, ".ddf1_disks", GROUP, ok, 3906898096 sectors, data@ 0

2. dmraid -V

dmraid version: 1.0.0.rc16 (2009.09.16) shared
dmraid library version: 1.0.0.rc16 (2009.09.16)
device-mapper version: unknown

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

The following commands are executed in Ubuntu 14.04.4 + 4.4.0-34-generic

1. dmraid -d -r

DEBUG: not isw at 17091787776
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 17090705920
DEBUG: not isw at 982805117952
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 982804036096
DEBUG: not isw at 2000365288448
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 2000364206592
DEBUG: not isw at 1000204884992
DEBUG: isw trying hard coded -2115 offset.
DEBUG: not isw at 1000203803136
no raid disks

2. dmraid -V

dmraid version: 1.0.0.rc16 (2009.09.16) shared
dmraid library version: 1.0.0.rc16 (2009.09.16)
device-mapper version:  unknown

Option verbose only return "no raid disks"

I've also take a look into the system log. Seems the device-mapper
versions of the two kernels are different?

Ubuntu 14.04.4 + 3.16.0-77-generic

Aug 10 20:10:55 bblabcloud kernel: [0.625995] device-mapper: uevent: 
version 1.0.3
Aug 10 20:10:55 bblabcloud kernel: [0.626037] device-mapper: ioctl: 
4.34.0-ioctl (2015-10-28) initialised: dm-de...@redhat.com
.

Aug 10 11:26:09 bblabcloud kernel: [   26.001170] device-mapper:
multipath: version 1.7.0 loaded

Ubuntu 14.04.4 + 4.4.0-34-generic

Aug 10 20:10:55 bblabcloud kernel: [0.625995] device-mapper: uevent: 
version 1.0.3
Aug 10 20:10:55 bblabcloud kernel: [0.626037] device-mapper: ioctl: 
4.34.0-ioctl (2015-10-28) initialised: dm-de...@redhat.com
..

Aug 10 20:10:55 bblabcloud kernel: [9.720613] device-mapper:
multipath: version 1.10.0 loaded

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

That sounds more like, despite dmraid using ddf in the name, the BIOS
uses some different format which mdadm does not recognize. So that would
mean you cannot switch from dmraid to mdadm.

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

So am I able to switch from dmraid to mdadm to control the raid1 without
affecting the hard drive in Ubuntu 14.04.4?

Because when I do a fresh install of Ubuntu 16.04.1, which comes with
Kernel 4.4.0-34, mdadm (pre-installed in 16.04.1 already) says my raid
device does not have recognized superblocks. If I try to load the disk
directly, it will give me a unknown type ddf_raid_member.

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

The 14.01.x output is not that surprising, dmraid is setting up the
raid1 as device-mapper targets. The problem is that dmraid has been
abandoned upstream. So the package is unchanged since 14.04 (that could
mean it does not even compile anymore).

So there might be some options:
1. Sicne mdadm is supposed to be supporting ddf signatures, the question is was 
the user-space side actually installed on upgrade (package name mdadm)? If it 
is installed, then at least in 14.04 there were boot options (either 
/etc/default/grub or some file in /etc/default/grub.d) that were used to modify 
handling of ddf signatures. So maybe those need to change, then run update-grub 
and reboot.

2. The other possibility would be to force a re-compile of dmraid in
16.04 and see whether that works or needs fixing. I could do that but I
cannot promise how quickly I get to it.

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

sdd is a usable external hard drive.

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

Ubuntu 14.04.4

lsblk

NAME   MAJ:MIN RM   
SIZE RO TYPE   MOUNTPOINT
sda  8:00 
931.5G  0 disk
├─sda1   8:10   
243M  0 part   /boot
├─sda2   8:20   
  1K  0 part
└─sda5   8:50 
931.3G  0 part
  ├─ubuntu--vg-root (dm-0) 252:00 
915.3G  0 lvm/
  └─ubuntu--vg-swap_1 (dm-1)   252:10  
15.9G  0 lvm[SWAP]
sdb  8:16   0   
1.8T  0 disk
└─ddf1_4b1b92914b1b92914b044b040001 (dm-2) 252:20   
1.8T  0 dmraid
  └─ddf1_4b1b92914b1b92914b044b040001p1 (dm-3) 252:30   
1.8T  0 part   /media/Database
sdc  8:32   0   
1.8T  0 disk
└─ddf1_4b1b92914b1b92914b044b040001 (dm-2) 252:20   
1.8T  0 dmraid
  └─ddf1_4b1b92914b1b92914b044b040001p1 (dm-3) 252:30   
1.8T  0 part   /media/Database
sdd  8:48   0   
1.8T  0 disk
└─sdd1   8:49   0   
1.8T  0 part
sr0 11:01  
1024M  0 rom

Strange that in Ubuntu 14.04.4, I get the following output with cat
/proc/mdstat

Personalities :
unused devices: 

In Ubuntu 16.04.1

lsblk

NAME MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda8:00 931.5G  0 disk
├─sda1 8:10   243M  0 part /boot
├─sda2 8:20 1K  0 part
└─sda5 8:50 931.3G  0 part
  ├─ubuntu--vg-root (dm-0)   252:00 915.3G  0 lvm  /
  └─ubuntu--vg-swap_1 (dm-1) 252:10  15.9G  0 lvm  [SWAP]
sdb8:16   1   1.8T  0 disk
sdc8:32   1   1.8T  0 disk
sdd8:48   0   1.8T  0 disk
└─sdd1 8:49   0   1.8T  0 part
sr0   11:01  1024M  0 rom

cat /proc/mdstat

Personalities :
unused devices: 

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

Oh I think I meant ddf not dds in my previous post. So it could be that
this just moved from being handled by dmraid to mdadm. Could you add the
output of lsblk and "cat /proc/mdstat", please?

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

Yes, I've already done that. I try to use dmraid with arg "-ay" to scan
any possible raid devices when I changed kernel in 14.04.4, and dmraid
returns no raid found. fdisk shows /dev/sdb and /dev/sdc as
ddf_raid_member.

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

Sure, those BIOS fakeraid boards are getting rare (meaning only you can
do tests and provide info). So you can (with the current 16.04.1 kernel)
check whether the dmraid package is still installed. If yes, try to run
it in various modes (there is one to only show things, but also one that
is supposed to create the raid1). I cannot remember the exact command
lines but there should be a man page for it. Then please add any
results/error messages to this bug.

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

Sure, I've rolled back to the working kernel after the boot failed.
Thank you!

Is there any thing I can do to fix this bug?

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-09 Thread Stefan Bader

The user-space tool that is responsible to set up fakeraid (except for
Intel MSM and DDS style meta-data). Make sure that package is still
installed and the dmraid command is still usable.

A rc1 mainline kernel is probably a bit too recent since the first
release candidate can always be unstable. A 4.7 final maybe would have
been better, though I suspect its less of a kernel issue than a problem
with the user-space tool. Maybe related to the kernel because the
interface to set up a device-mapper raid1 could have changed.

Not sure if you know how to get back to a working kernel. If not, it
should be possible to quickly hit left-shift between BIOS and the hidden
grub screen to get to the grub menu (though I am too slow most of the
time). From there one would select the alternative option and there has
the choice of older kernels.

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

/scripts/init-top/udev: line 14: can't create /sys/kernel/uevent-helper:
Permission denied.

Gave up waiting for root device. Common problems:
- Boot args (cat /proc/cmdline)
- Check root delay= (did the system wait long enough?)
- Check root= (did the system wait for the right device?)
- Missing modules (cat /proc/modules, ls /dev)
ALERT! /dev/mapper/ubuntu--vg-root does not exist. Dropping to a shell.
BusyBox v1.12.1 (Ubuntu 1:1.21.0-iubuntu1) built-in shell (ash) Enter 'help'
for a list a built-in commands

(initramfs)

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Title:
  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

Sorry, I'm not able to boot my PC with kernel
4.8.0-040800rc1_4.8.0-040800rc1.201608072231.

The error message is as follows:
/scripts/init-top/udev: line 14: can't create /sys/kernel/uevent_helper: 
permissions failed

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-09 Thread Joseph Salisbury

Yes, you can remove the mainline kernel with dpkg --purge

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

Is testing the upstream kernel able to reverse back to the original
state just like I install the 4.4.0-34-generic on Ubuntu 14.04.4?

After the trial, am I able to remove the upstream kernel with apt-get
remove and purge? Thanks.

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-09 Thread Joseph Salisbury

Comment #17 should have said the "latest v4.8 kernel"

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  Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid

2016-08-09 Thread Joseph Salisbury

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.7 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc1


** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Tags added: kernel-da-key needs-bisect

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[Bug 1611277] Re: Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid