plus virtualbox 4.1 with network in a box would like snv_159
from http://www.virtualbox.org/wiki/Changelog
Solaris hosts: New Crossbow based bridged networking driver for Solaris 11
build 159 and above
Rob
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BTW, any new storage-controller-related drivers introduced in snv151a?
the 64bit driver in 147
-rwxr-xr-x 1 root sys 401200 Sep 14 08:44 mpt
-rwxr-xr-x 1 root sys 398144 Sep 14 09:23 mpt_sas
is a different size than 151a
-rwxr-xr-x 1 root sys 400936 Nov 15
you can't use anything but a block device for the L2ARC device.
sure you can...
http://mail.opensolaris.org/pipermail/zfs-discuss/2010-March/039228.html
it even lives through a reboot (rpool is mounted before other pools)
zpool create -f test c9t3d0s0 c9t4d0s0
zfs create -V 3G rpool/cache
if you disable the ZIL altogether, and you have a power interruption, failed
cpu,
or kernel halt, then you're likely to have a corrupt unusable zpool
the pool will always be fine, no matter what.
or at least data corruption.
yea, its a good bet that data sent to your file or zvol will
Can't you slice the SSD in two, and then give each slice to the two zpools?
This is exactly what I do ... use 15-20 GB for root and the rest for an L2ARC.
I like the idea of swapping on SSD too, but why not make a zvol for the L2ARC
so your not limited by the hard partitioning?
I like the idea of swapping on SSD too, but why not make a zvol for the L2ARC
so your not limited by the hard partitioning?
it lives through a reboot..
zpool create -f test c9t3d0s0 c9t4d0s0
zfs create -V 3G rpool/cache
zpool add test cache /dev/zvol/dsk/rpool/cache
reboot
An UPS plus disabling zil, or disabling synchronization, could possibly
achieve the same result (or maybe better) iops wise.
Even with the fastest slog, disabling zil will always be faster...
(less bytes to move)
This would probably work given that your computer never crashes
in an
RFE open to allow you to store [DDT] on a separate top level VDEV
hmm, add to this spare, log and cache vdevs, its to the point of making
another pool and thinly provisioning volumes to maintain partitioning
flexibility.
taemun: hay, thanks for closing the loop!
I like the original Phenom X3 or X4
we all agree ram is the key to happiness. The debate is what offers the most ECC
ram for the least $. I failed to realize the AM3 cpus accepted UnBuffered ECC
DDR3-1333
like Lynnfield. To use Intel's 6 slots vs AMD 4 slots, one must use Registered
ECC.
So
if zfs overlaps mirror reads across devices.
it does... I have one very old disk in this mirror and
when I attach another element one can see more reads going
to the faster disks... this past isn't right after the attach
but since the reboot, but one can still see the reads are
load balanced
Intel's RAM is faster because it needs to be.
I'm confused how AMD's dual channel, two way interleaved
128-bit DDR2-667 into an on-cpu controller is faster than
Intel's Lynnfield dual channel, Rank and Channel interleaved
DDR3-1333 into an on-cpu controller.
I am leaning towards AMD because of ECC support
well, lets look at Intel's offerings... Ram is faster than AMD's
at 1333Mhz DDR3 and one gets ECC and thermal sensor for $10 over non-ECC
http://www.newegg.com/Product/Product.aspx?Item=N82E16820139040
This MB has two Intel ethernets and for
true. but I buy a Ferrari for the engine and bodywork and chassis
engineering. It is totally criminal what Sun/EMC/Dell/Netapp do charging
its interesting to read this with another thread containing:
timeout issue is definitely the WD10EARS disks.
replaced 24 of them with ST32000542AS (f/w
a 1U or 2U JBOD chassis for 2.5 drives,
from http://supermicro.com/products/nfo/chassis_storage.cfm
the E1 (single) or E2 (dual) options have a SAS expander so
http://supermicro.com/products/chassis/2U/?chs=216
fits your build or build it your self with
By partitioning the first two drives, you can arrange to have a small
zfs-boot mirrored pool on the first two drives, and then create a second
pool as two mirror pairs, or four drives in a raidz to support your data.
agreed..
2 % zpool iostat -v
capacity operations
this one has me alittle confused. ideas?
j...@opensolaris:~# zpool import z
cannot mount 'z/nukeme': mountpoint or dataset is busy
cannot share 'z/cle2003-1': smb add share failed
j...@opensolaris:~# zfs destroy z/nukeme
internal error: Bad exchange descriptor
Abort (core dumped)
2 x 500GB mirrored root pool
6 x 1TB raidz2 data pool
I happen to have 2 x 250GB Western Digital RE3 7200rpm
be better than having the ZIL 'inside' the zpool.
listing two log devices (stripe) would have more spindles
than your single raidz2 vdev.. but for low cost fun one
might make a
Chenbro 16 hotswap bay case. It has 4 mini backplanes that each connect via
an SFF-8087 cable
StarTech HSB430SATBK
hmm, both are passive backplanes with one SATA tunnel per link...
no SAS Expanders (LSISASx36) like those found in SuperMicro or J4x00 with 4
links per connection.
wonder
P45 Gigabyte EP45-DS3P. I put the AOC card into a PCI slot
I'm not sure how many half your disks are or how your vdevs
are configured, but the ICH10 has 6 sata ports at 300MB and
one PCI port at 266MB (that's also shared with the IT8213 IDE chip)
so in an ideal world your scrub bandwidth
The ICH10 has a 32-bit/33MHz PCI bus which provides 133MB/s at half duplex.
you are correct, I thought ICH10 used a 66Mhz bus, when infact its 33Mhz. The
AOC card works fine in a PCI-X 64Bit/133Mhz slot good for 1,067 MB/s
even if the motherboard uses a PXH chip via 8 lane PCIE.
from a two disk (10krpm) mirror layout to a three disk raidz-1.
wrights will be unnoticeably slower for raidz1 because of parity calculation
and latency of a third spindle. but reads will be 1/2 the speed
of the mirror because it can split the reads between two disks.
another way to say the
frequent snapshots offer outstanding oops protection.
Rob
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Maybe to create snapshots after the fact
how does one quiesce a drive after the fact?
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So the solution is to never get more than 90% full disk space
while that's true, its not Henrik's main discovery. Henrik points
out that 1/4 of the arc is used for metadata, and sometime
that's not enough..
if
echo ::arc | mdb -k | egrep ^size
isn't reaching
echo ::arc | mdb -k | egrep ^c
are you going to ask NetApp to support ONTAP on Dell systems,
well, ONTAP 5.0 is built on freebsd, so it wouldn't be too
hard to boot on dell hardware. Hay, at least it can do
aggregates larger than 16T now...
http://www.netapp.com/us/library/technical-reports/tr-3786.html
Action: Restore the file in question if possible. Otherwise restore
the
entire pool from backup.
metadata:0x0
metadata:0x15
bet its in a snapshot that looks to have been destroyed already. try
zpool clear POOL01
zpool scrub POOL01
zfs will use as much memory as is necessary but how is necessary
calculated?
using arc_summary.pl from http://www.cuddletech.com/blog/pivot/entry.php?id=979
my tiny system shows:
Current Size: 4206 MB (arcsize)
Target Size (Adaptive): 4207 MB (c)
Min
The post I read said OpenSolaris guest crashed, and the guy clicked
the ``power off guest'' button on the virtual machine.
I seem to recall guest hung. 99% of solaris hangs (without
a crash dump) are hardware in nature. (my experience backed by
an uptime of 1116days) so the finger is still
the machine hung and I had to power it off.
kinda getting off the zpool import --tgx -3 request, but
hangs are exceptionally rare and usually ram or other
hardware issue, solairs usually abends on software faults.
r...@pdm # uptime
9:33am up 1116 day(s), 21:12, 1 user, load average:
c4 scsi-bus connectedconfigured unknown
c4::dsk/c4t15d0disk connectedconfigured unknown
:
c4::dsk/c4t33d0disk connectedconfigured unknown
c4::es/ses0ESI connected
CPU is smoothed out quite a lot
yes, but the area under the CPU graph is less, so the
rate of real work performed is less, so the entire
job took longer. (allbeit smoother)
Rob
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try to be spread across different vdevs.
% zpool iostat -v
capacity operationsbandwidth
pool used avail read write read write
-- - - - - - -
z686G 434G 40 5 2.46M 271K
c1t0d0s7 250G 194G
correct ratio of arc to l2arc?
from http://blogs.sun.com/brendan/entry/l2arc_screenshots
It costs some DRAM to reference the L2ARC, at a rate proportional to record
size.
For example, it currently takes about 15 Gbytes of DRAM to reference 600 Gbytes
of
L2ARC - at an 8 Kbyte ZFS record size.
zpool offline grow /var/tmp/disk01
zpool replace grow /var/tmp/disk01 /var/tmp/bigger_disk01
one doesn't need to offline before the replace, so as long as you
have one free disk interface one can cfgadm -c configure sata0/6
each disk as you go... or you can offline and cfgadm each
disk in the
How does one look at the disk traffic?
iostat -xce 1
OpenSolaris, raidz2 across 8 7200 RPM SATA disks:
17179869184 bytes (17 GB) copied, 127.308 s, 135 MB/s
OpenSolaris, flat pool across the same 8 disks:
17179869184 bytes (17 GB) copied, 61.328 s, 280 MB/s
one raidz2 set of 8 disks
use a bunch of 15K SAS drives as L2ARC cache for several TBs of SATA disks?
perhaps... depends on the workload, and if the working set
can live on the L2ARC
used mainly as astronomical images repository
hmm, perhaps two trays of 1T SATA drives all
mirrors rather than raidz sets of one
When I type `zpool import` to see what pools are out there, it gets to
/1: open(/dev/dsk/c5t2d0s0, O_RDONLY) = 6
/1: stat64(/usr/local/apache2/lib/libdevid.so.1, 0x08042758) Err#2 ENOENT
/1: stat64(/usr/lib/libdevid.so.1, 0x08042758)= 0
/1: d=0x02D90002
Not. Intel decided we don't need ECC memory on the Core i7
I thought that was a Core i7 vs Xeon E55xx for socket
LGA-1366 so that's why this X58 MB claims ECC support:
http://supermicro.com/products/motherboard/Xeon3000/X58/X8SAX.cfm
___
the sata framework uses the sd driver so its:
4 % smartctl -d scsi -a /dev/rdsk/c4t2d0s0
smartctl version 5.36 [i386-pc-solaris2.8] Copyright (C) 2002-6 Bruce Allen
Home page is http://smartmontools.sourceforge.net/
Device: ATA WDC WD1001FALS-0 Version: 0K05
Serial number:
Device type:
I don't think the Pentium E2180 has the lanes to use ECC RAM.
look at the north bridge, not the cpu.. the PowerEdge SC440
uses intel 3000 MCH which supports up to 8GB unbuffered ECC
or non-ECC DDR2 667/533 SDRAM. its been replaced with
the intel 32x0 that uses DDR2 800/667MHz unbuffered ECC /
ECC?
$60 unbuffered 4GB 800MHz DDR2 ECC CL5 DIMM (Kit Of 2)
http://www.provantage.com/kingston-technology-kvr800d2e5k2-4g~7KIN90H4.htm
for Intel 32x0 north bridge like
http://www.provantage.com/supermicro-x7sbe~7SUPM11K.htm
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I'd like to take a backup of a live filesystem without modifying
the last accessed time.
why not take a snapshot?
Rob
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Is there a way to efficiently replicating a complete zfs-pool
including all filesystems and snapshots?
zfs send -R
-R Generate a replication stream package,
which will replicate the specified
filesystem, and
making all the drives in a *zpool* the same size.
The only issue of having vdevs of diffrent sizes is when
one fills up, reducing the strip size for writes.
making all the drives in a *vdev* (of almost any type) the same
The only issue is the unused space of the largest device, but
then we
1) and l2arc or log device needs to evacuation-possible
how about evacuation of any vdev? (pool shrink!)
2) any failure of a l2arc or log device should never prevent
importation of a pool.
how about import or creation of any kinda degraded pool?
Rob
replace a current raidz2 vdev with a mirror.
your asking for vdev removal or pool shrink which isn't
finish yet.
Rob
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There is something more to consider with SSDs uses as a cache device.
why use SATA as the interface? perhaps
http://www.tgdaily.com/content/view/34065/135/
would be better? (no experience)
cards will start at 80 GB and will scale to 320 and 640 GB next year.
By the end of 2008, Fusion io also
1) Am I right in my reasoning?
yes
2) Can I remove the new disks from the pool, and re-add them under the
raidz2 pool
copy the data off the pool, destroy and remake the pool, and copy back
3) How can I check how much zfs data is written on the actual disk (say
c12)?
would do and booted from the CD. OK, now I zpool imported rpool,
modified [], exported the pool, and rebooted.
the oops part is the exported the pool as a reboot after editing
would have worked as expected so rpool wasn't marked as exported
so boot from the cdrom again, zpool import
type:
zpool import 11464983018236960549 rpool.old
zpool import -f mypool
zpool upgrade -a
zfs upgrade -a
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There's also a spare attached to the pool that's not showing here.
can you make it show?
Rob
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How do I go about making it show?
zdb -e exported_pool_name
will show the children's paths and find the path of the spare
that's missing and once you get it to shows up you can import the pool.
Rob
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or work around the NCQ bug in the drive's FW by typing:
su
echo set sata:sata_max_queue_depth = 0x1 /etc/system
reboot
Rob
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hmm, three drives with 35 io requests in the queue
and none active? remind me not to buy a drive
with that FW..
1) upgrade the FW in the drives or
2) turn off NCQ with:
echo set sata:sata_max_queue_depth = 0x1 /etc/system
Rob
I did the cp -r dir1 dir2 again and when it hanged
when its hung, can you type: iostat -xce 1
in another window and is there a 100 in the %b column?
when you reset and try the cp again, and look at
iostat -xce 1 on the second hang, is the same disk at 100 in %b?
if all your windows are hung,
Because then I have to compute yesterday's date to do the
incremental dump.
snaps=15
today=`date +%j`
# to change the second day of the year from 002 to 2
today=`expr $today + 0`
nuke=`expr $today - $snaps`
yesterday=`expr $today - 1`
if [ $yesterday -lt 1 ] ; then
yesterday=365
fi
if [
have 4x500G disks in a RAIDZ. I'd like to repurpose [...] as the second
half of a mirror in a machine going into colo.
rsync or zfs send -R the 128G to the machine going to the colo
if you need more space in colo, remove one disk faulting sys1
and add (stripe) it on colo (note: you will
Way crude, but effective enough:
kinda cool, but isn't thats what
sar -f /var/adm/sa/sa`date +%d` -A | grep -v ,
is for? crontab -e sys
to start..
for more fun
acctadm -e extended -f /var/adm/exacct/proc process
Rob
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appears to have unlimited backups for 4.95 a month.
http://rsync.net/ $1.60 per month per G (no experience)
to keep this more ontopic and not spam like. what about [home]
backups??.. what's the best deal for you:
1) a 4+1 (space) or 2*(2+1) (speed) 64bit 4G+ zfs nas
(data for old
as its been pointed out it likely 6458218
but a zdb -e poolname
will tell you alittle more
Rob
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what causes a dataset to get into this state?
while I'm not exactly sure, I do have the steps leading up to when
I saw it trying to create a snapshot. ie:
10 % zfs snapshot z/b80nd/[EMAIL PROTECTED]
cannot create snapshot 'z/b80nd/[EMAIL PROTECTED]': dataset is busy
13 % mount -F zfs
fun example that shows NCQ lowers wait and %w, but doesn't have
much impact on final speed. [scrubbing, devs reordered for clarity]
extended device statistics
devicer/sw/s kr/skw/s wait actv svc_t %w %b
sd2 454.70.0 47168.00.0 0.0 5.7
space_map_add+0xdb(ff014c1a21b8, 472785000, 1000)
space_map_load+0x1fc(ff014c1a21b8, fbd52568, 1,
ff014c1a1e88, ff0149c88c30)
running snv79.
hmm.. did you spend any time in snv_74 or snv_75 that might
have gotten
I've only started using ZFS this week, and hadn't even touched a Unix
welcome to ZFS... here is a simple script you can start with:
#!/bin/sh
snaps=15
today=`date +%j`
nuke=`expr $today - $snaps`
yesterday=`expr $today - 1`
if [ $yesterday -lt 0 ] ; then
yesterday=365
fi
if [ $nuke -lt 0
bootfs rootpool/rootfs
does grep zfs /mnt/etc/vfstab look like:
rootpool/rootfs- / zfs - no -
(bet it doesn't... edit like above and reboot)
or second guess (well, third :-) is your theory that
can be checked with:
zpool import rootpool
zpool import
I guess the zpool.cache in the bootimage got corrupted?
not on zfs :-) perhaps a path to a drive changed?
Rob
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r/sw/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device
0.0 48.00.0 3424.6 0.0 35.00.0 728.9 0 100 c2t8d0
That service time is just terrible!
yea, that service time is unreasonable. almost a second for each
command? and 35 more commands queued? (reorder =
After a fresh SMI labeled c0t0d0s0 / swap /export/home jumpstart
in /etc check
hostname.e1000g0 defaultrouter netmasks resolv.conf nsswitch.conf
services hosts
coreadm.conf acctadm.conf dumpadm.conf named.conf rsync.conf
svcadm disable fc-cache cde-login cde-calendar-manager
here is a simple layout for 6 disks toward speed :
/dev/dsk/c0t0d0s1 - - swap- no -
/dev/dsk/c0t1d0s1 - - swap- no -
root/snv_77 - / zfs - no -
z/snv_77/usr - /usr zfs - yes -
z/snv_77/var -
with 4 cores and 2-4G of ram.
not sure 2G is enough... at least with 64bit there are no kernel space
issues.
6 % echo '::memstat' | mdb -k
Page SummaryPagesMB %Tot
Kernel 692075
grew tired of the recycled 32bit cpus in
http://www.opensolaris.org/jive/thread.jspa?messageID=127555
and bought this to put the two marvell88sx cards in:
$255 http://www.supermicro.com/products/motherboard/Xeon3000/3210/X7SBE.cfm
On the other hand, the pool of 3 disks is obviously
going to be much slower than the pool of 5
while today that's true, someday io will be
balanced by the latency of vdevs rather than
the number... plus two vdevs are always going
to be faster than one vdev, even if one is slower
than the
I'm confused by this and NexentaStor... wouldn't it be better
to use b77? with:
Heads Up: File system framework changes (supplement to CIFS' head's up)
Heads Up: Flag Day (Addendum) (CIFS Service)
Heads Up: Flag Day (CIFS Service)
caller_context_t in all VOPs - PSARC/2007/218
VFS Feature
I suspect that the bad ram module might have been the root
cause for that freeing free segment zfs panic,
perhaps I removed two 2G simms but left the two 512M
simms, also removed kernelbase but the zpool import
still crashed the machine.
its also registered ECC ram, memtest86 v1.7
I'm not surprised that having /usr in a separate pool failed.
while this is discouraging, (I have several b62 machines with
root mirrored and /usr on raidz) if booting from raidz
is a pri, and comes soon, at least I'd be happy :-)
Rob
which is better 8+2 or 8+1+spare?
8+2 is safer for the same speed
8+2 requires alittle more math, so its slower in theory. (unlikely seen)
(4+1)*2 is 2x faster, and in theory is less likely to have wasted space
in transaction group (unlikely seen)
(4+1)*2 is cheaper to upgrade in
How does eeprom(1M) work on the Xeon that the OP said he has?
its faked via /boot/solaris/bootenv.rc
built into /platform/i86pc/$ISADIR/boot_archive
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issues does ZFS have with running in only 32-bit mode?
with less then 2G ram, no worry... with more then 3G ram
and you don't need mem in userspace, give it to the kernel
in virtual memory for zfs cache by moving the kernelbase...
eeprom kernelbase=0x8000
or for only 1G userland:
eeprom
an array of 30 drives in a RaidZ2 configuration with two hot spares
I don't want to mirror 15 drives to 15 drives
ok, so space over speed... and are willing to toss somewhere between 4
and 15 drives for protection.
raidz splits the (up to 128k) write/read recordsize into each element of
the
[hourly] marvell88sx error in command 0x2f: status 0x51
ah, its some kinda SMART or FMA query that
model WDC WD3200JD-00KLB0
firmware 08.05J08
serial number WD-WCAMR2427571
supported features:
48-bit LBA, DMA, SMART, SMART self-test
SATA1 compatible
capacity = 625142448 sectors
drives
with no seen effects `dmesg` reports lots of
kern.warning] WARNING: marvell88sx1: port 3: error in command 0x2f: status 0x51
found in snv_62 and opensol-b66 perhaps
http://bugs.opensolaris.org/view_bug.do?bug_id=6539787
can someone post part of the headers even if the code is closed?
we know time machine requires an extra disk (local or remote) so its
reasonable to guess the non bootable time machine disk could use zfs.
someone with a Leopard dvd (Rick Mann) could answer this...
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On the third upgrade of the home nas, I chose
http://www.addonics.com/products/raid_system/ae4rcs35nsa.asp to hold the
disks. each hold 5 disks, in the space of three slots and 4 fit into a
http://www.google.com/search?q=stacker+810 case for a total of 20
disks.
But if given a chance to go back
Patching zfs_prefetch_disable = 1 has helped
It's my belief this mainly aids scanning metadata. my
testing with rsync and yours with find (and seen with
du ; zpool iostat -v 1 ) pans this out..
mainly tracked in bug 6437054 vdev_cache: wise up or die
sits there for a second, then boot loops and comes back to the grub menu.
I noticed this too when I was playing... using
kernel$ /platform/i86pc/kernel/$ISADIR/unix -v -B $ZFS-BOOTFS
I could see vmunix loading, but it quickly NMIed around the
rootnex: [ID 349649 kern.notice] isa0 at root
updating my notes with Lori's rootpool notes found in
http://www.opensolaris.org/os/community/zfs/boot/zfsboot-manual/ using
the Solaris Express: Community Release DVD (no asserts like bfu code) from
http://www.opensolaris.org/os/downloads/on/ and installing the Solaris
Express (second option,
I'm sure its not blessed, but another process to maximize the zfs space
on a system with few disks is
1) boot from SXCR http://www.opensolaris.org/os/downloads/on/
2) select min install with
512M /
512M swap
rest /export/home
use format to copy the partition table from disk0 to disk1
umount
With modern journalling filesystems, I've never had to fsck anything or
run a filesystem repair. Ever. On any of my SAN stuff.
you will.. even if the SAN is perfect, you will hit
bugs in the filesystem code.. from lots of rsync hard
links or like this one from raidtools last week:
Feb 9
This is a lightly loaded v20z but it has zfs across its two disks..
its hung (requiring a power cycle) twice since running
5.11 opensol-20060904
the last time I had a `vmstat 1` running... nice page rates
right before death :-)
kthr memorypagedisk faults
FWIW, the Micropolis 1355 is a 141 MByte (!) ESDI disk.
The MD21 is an ESDI to SCSI converter.
yup... its the board in the middle left of
http://rob.com/sun/sun2/md21.jpg
Rob
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did a `zpool export zfs ; zpool import zfs` and got a core.
core file = core.import -- program ``/sbin/zpool'' on platform i86pc
SIGSEGV: Segmentation Fault
$c
libzfs.so.1`zfs_prop_get+0x24(0, d, 80433f0, 400, 0, 0)
libzfs.so.1`dataset_compare+0x39(80d5fd0, 80d5fe0)
For various reasons, I can't post the zfs list type
here is one, and it seems inline with expected netapp(tm)
type usage considering the cluster size differences.
14 % cat snap_sched
#!/bin/sh
snaps=15
for fs in `echo Videos Movies Music users local`
do
i=$snaps
zfs destroy zfs/[EMAIL
Infrant NAS box and using their X-RAID instead.
I've gone back to solaris from an Infrant box.
1) while the Infrant cpu is sparc, its way, way, slow.
a) the web IU takes 3-5 seconds per page
b) any local process, rsync, UPnP, SlimServer is cpu starved
2) like a netapp,
comfortable with having 2 parity drives for 12 disks,
the thread starting config of 4 disks per controller(?):
zpool create tank raidz2 c1t1d0 c1t2d0 c1t3d0 c1t4d0c2t1d0 c2t2d0
then later
zpool add tank raidz2 c2t3d0 c2t4d0 c3t1d0 c3t2d0 c3t3d0 c3t4d0
as described, doubles ones
Well, glue a beard on me and call me Nostradamus :
http://www.sun.com/servers/x64/x4500/arch-wp.pdf
http://www.cooldrives.com/8-channel-8-port-sata-pci-card.html
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with ZFS the primary driver isn't cpu, its how many drives can
one attach :-) I use a 8 sata and 2 pata port
http://supermicro.com/Aplus/motherboard/Opteron/nForce/H8DCE.cfm
But there was a v20z I could steal registered ram and cpus from.
H8DCE can't use the SATA HBA Framework which only
a total of 4*64k = 256k to fetch a 2k block.
http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6437054
perhaps a quick win would be to tell vdev_cache
about the DMU_OT_* type so it can read ahead appropriately.
it seems the largest losses are metadata. (du,find,scrub/resilver)
, Rob Logan wrote:
`mv`ing files from a zfs dir to another zfs filesystem
in the same pool will panic a 8 sata zraid
http://supermicro.com/Aplus/motherboard/Opteron/nForce/H8DCE.cfm
system with
::status
debugging crash dump vmcore.3 (64-bit) from zfs
operating system: 5.11 opensol
`mv`ing files from a zfs dir to another zfs filesystem
in the same pool will panic a 8 sata zraid
http://supermicro.com/Aplus/motherboard/Opteron/nForce/H8DCE.cfm
system with
::status
debugging crash dump vmcore.3 (64-bit) from zfs
operating system: 5.11 opensol-20060523 (i86pc)
panic message:
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