Re: FreeBSD 9.0 LSI MegaRAID SATA problem
On 07/10/2012 12:00 PM, Bosko Radivojevic wrote: Hi, i just forgot to add following output from FreeBSD 8.3: # atacontrol status ar0 ar0: ATA RAID1 status: READY subdisks: 0 ad4 ONLINE 1 ad6 ONLINE Thanks, Bosko Hi Bosko, For FreeBSD 9.0-RELEASE see the release notes http://www.freebsd.org/releases/9.0R/relnotes.html especially Thegraid(8) http://www.freebsd.org/cgi/man.cgi?query=graidsektion=8manpath=FreeBSD+9.0-RELEASEGEOM class has been added. This is a replacement of theataraid(4) http://www.freebsd.org/cgi/man.cgi?query=ataraidsektion=4manpath=FreeBSD+9.0-RELEASEdriver supporting various BIOS-based software RAID.[r219974 http://svn.freebsd.org/viewvc/base?view=revisionrevision=219974] Disclaimer: http://www.ose.nl/email ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0 LSI MegaRAID SATA problem
# gmirror list gmirror: Command 'list' not available. # gmirror status gmirror: Command 'status' not available. gmirror load It is probably soft-RAID, but I prefer to use it though appropriate driver instead of classical software RAID configured through OS. i would recommend otherwise. Actually it is already strange FreeBSD have drivers to nonexistent hardware, duplicating mostly gmirrorgstripe functionality flaky way. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0 LSI MegaRAID SATA problem
On 07/10/2012 12:11 PM, Wojciech Puchar wrote: It is always better to use gmirror instead of hardware RAID. One have full control over what is going on mmh not always. Nothing replaces a good hardware RAID card with a BBU for real reason i used parantheses for word hardware. That's clear to me. These hardware raid controllers are not very reliable because they are indeed not real hardware raid controllers, but software based. Maybe for desktop usage it's ok/ good enough? It is better to use the operating systems raid capability linke gmirror instead. Of course real hardware raid controllers with cache and battery backed are a different thing and very reliable. Disclaimer: http://www.ose.nl/email ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0 LSI MegaRAID SATA problem
Hi Bas, thank you for response. 'geom disk list' gives me list of disks, but 'geom raid load;geom raid list' doesn't give anything. I've tried 'geom load mirror', but 'geom mirror list' is also empty. What next? :) Thanks! ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0 LSI MegaRAID SATA problem
That's clear to me. These hardware raid controllers are not very reliable because they are indeed not real hardware raid controllers, but software based. Maybe for desktop usage it's ok/ good enough? precise what is desktop usage is. i don't see a reason for doing mirroring for home use. It is better to use the operating systems raid capability linke gmirror instead. always. Of course real hardware raid controllers with cache and battery backed are a different thing and very reliable. if you have workload where battery backed cache will actually improve things (heavy fsync usage) then yes. otherwise no. i've seen many of them, older, newer, and with same disks i always got at least same performance with FreeBSD software solution. Not talking about RAID5 of which i am not interested at all - there is no reason trading performance for available space nowadays with 2-3TB disks. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0 LSI MegaRAID SATA problem
'geom raid load;geom raid list' doesn't give anything. I've tried 'geom load mirror', but 'geom mirror list' is also empty. what other do you expect with no mirrors created yet? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0 LSI MegaRAID SATA problem
On 07/10/2012 12:20 PM, Bosko Radivojevic wrote: Hi Bas, thank you for response. 'geom disk list' gives me list of disks, but 'geom raid load;geom raid list' doesn't give anything. I've tried 'geom load mirror', but 'geom mirror list' is also empty. What next? :) Thanks! Hi Bosko, I do not have any experience with these kind of controllers, so I could just guess. What does pciconf -lv produce, looking at the lines for you disk/softraid controller? Look for the device with class = mass storage Maybe it's not fully supported by graid, which would surprise me because graid this is a replacement for ataraid. Disclaimer: http://www.ose.nl/email ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0 LSI MegaRAID SATA problem
On Tue, Jul 10, 2012 at 12:26 PM, Wojciech Puchar woj...@wojtek.tensor.gdynia.pl wrote: what other do you expect with no mirrors created yet? But mirror (raid10) array is created through LSI MegaRAID BIOS. I'm trying to replicate behaviour from FreeBSD 8.3 (array created through RAID BIOS, seen as a device in OS). ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0 LSI MegaRAID SATA problem
I proceeded with: graid label Intel raid RAID1 ada0 ada1. Hope this works what I want :) On Tue, Jul 10, 2012 at 12:31 PM, Bosko Radivojevic bosko.radivoje...@gmail.com wrote: On Tue, Jul 10, 2012 at 12:26 PM, Wojciech Puchar woj...@wojtek.tensor.gdynia.pl wrote: what other do you expect with no mirrors created yet? But mirror (raid10) array is created through LSI MegaRAID BIOS. I'm trying to replicate behaviour from FreeBSD 8.3 (array created through RAID BIOS, seen as a device in OS). ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0 LSI MegaRAID SATA problem
On 07/10/2012 12:26 PM, Wojciech Puchar wrote: That's clear to me. These hardware raid controllers are not very reliable because they are indeed not real hardware raid controllers, but software based. Maybe for desktop usage it's ok/ good enough? precise what is desktop usage is. Here at work we just use non raided disks for workstations which run linux. The home directories are on nfs, so when a disk fails it's replaced very fast by doing a basic install on a new disk or just replacing the disk by a preinstalled disk laying on the shelf here. i don't see a reason for doing mirroring for home use. Me neither, just keep back-ups of important data on a different place/device It is better to use the operating systems raid capability linke gmirror instead. always. Of course real hardware raid controllers with cache and battery backed are a different thing and very reliable. if you have workload where battery backed cache will actually improve things (heavy fsync usage) then yes. otherwise no. i've seen many of them, older, newer, and with same disks i always got at least same performance with FreeBSD software solution. Not talking about RAID5 of which i am not interested at all - there is no reason trading performance for available space nowadays with 2-3TB disks. I have never tries the FreeBSD raid solution as we always have servers with from past to now acc, amr and mfi controllers with raid1 and raid5 in the past mostly used for databases and perl cgi based web applications. Disclaimer: http://www.ose.nl/email ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0 LSI MegaRAID SATA problem
On Tue, 10 Jul 2012, Bosko Radivojevic wrote: On Tue, Jul 10, 2012 at 12:26 PM, Wojciech Puchar woj...@wojtek.tensor.gdynia.pl wrote: what other do you expect with no mirrors created yet? But mirror (raid10) array is created through LSI MegaRAID BIOS. I'm if it is RAID10 i assume you have 4 disks. trying to replicate behaviour from FreeBSD 8.3 (array created through RAID BIOS, seen as a device in OS). BIOS raid is not compatible with gmirror RAID. backup and restore. Actually i would recommend creating it as two RAID1 (gmirror) devices and spreading data. it is safer and..if you can spread data well... faster. BIOS RAID usually use far too small block sizes, to be better on windows benchmarks that shows linear read speed. except specialized uses it is no improvement under unix. What you need is to spread DIFFERENT I/O operations from different task to different heads. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: FreeBSD 9.0 LSI MegaRAID SATA problem
Hi Bosko, I do not have any experience with these kind of controllers, so I could just guess. I have a lot ;) but the only thing i always do is to disable RAID in BIOS just after receiving new machine. whole experience. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
FreeBSD 9.0 LSI MegaRAID SATA problem
Hi all! I have a problem installing FreeBSD 9.0 on Fujitsu Primergy RX200 S5 server with LSI MegaRAID SATA controller (two SATA HDDs in RAID1 array). When booted from a CD, FreeBSD doesn't recognize RAID Array, it recognizes HDDs only (ad4 ad6). On the same server, FreeBSD 8.3 installation recognizes RAID Array (ar0). pciconf -vl on FreeBSD 9.0: ahci0@pci0:0:31:2: class=0x010400 card=0x11501734 chip=0x3a258086 rev=0x00 hdr=0x00 vendor = 'Intel Corporation' device = '82801JIR (ICH10R) SATA RAID Controller' class = mass storage subclass = RAID pciconf -vl on FreeBSD 8.3: atapci0@pci0:0:31:2:class=0x010400 card=0x11501734 chip=0x3a258086 rev=0x00 hdr=0x00 vendor = 'Intel Corporation' device = 'SATA RAID Controller' class = mass storage subclass = RAID dmesg output on FreeBSD 8.3: # dmesg|grep ar0 ar0: writing of DDF metadata is NOT supported yet ar0: 952720MB DDF RAID1 status: READY ar0: disk0 READY (master) using ad4 at ata2-master ar0: disk1 READY (mirror) using ad6 at ata3-master As far as I understand (while I don't have that much FreeBSD experience), amr is the appropriate driver for this controller. Tried to load it manually (kldload /boot/kernel/amr.ko) but it seems the driver is already present in kernel. What am I missing here? Thanks! ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
