Re: Silicon Image SiI 3124 and 3132 RAID controllers
On 03/10/10 15:56, Leslie Jensen wrote: I'm trying to install FreeBSD 8-RELEASE on a machine with an Abit aw8-max MB. This MB has a built in SiI 3132 RAID controller. I also have an addon card with a SiI 3124 RAID controller. The problem is that I can see the 2 disks and the RAID1 set that I want to use for the system if I connect the disks to the built in 3132 controller. But if I connect the disks to the 3124 controller and create a RAID1 set, only the disks can be seen. I need to be able to use both controllers because I've got four disks that I want to build a RAID5 set on one of the controllers. Can anyone shed some light on this. Via Google I've read some articles about these controllers and I'm aware that I might have to rethink because of lacking support for the 3124 controller. I've read in the ata man page that parameters can be added to /boot/device.hints but I'm not sure how to handle this during installation. /Leslie Are you using the default ata(4) driver that FreeBSD-8 boots with, or are you loading the siis(4) module at boot? If you are using the ata(4) driver, you should try enabling the siis(4) driver by placing 'siis_load="YES"' in /boot/loader.conf. Beware that the names of your disks will transition from ad -> ada and will likely be renumbered as well. The siis(4) driver overall has a much richer feature set. I have several 3124 controllers which work great with it, but I have never tried using the controllers RAID - I simply use them as disk controllers and then pool the disks using ZFS. ___ 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: Silicon Image SiI 3124 and 3132 RAID controllers
On 2010-03-10 23:12, Steve Polyack wrote: On 03/10/10 15:56, Leslie Jensen wrote: I'm trying to install FreeBSD 8-RELEASE on a machine with an Abit aw8-max MB. This MB has a built in SiI 3132 RAID controller. I also have an addon card with a SiI 3124 RAID controller. The problem is that I can see the 2 disks and the RAID1 set that I want to use for the system if I connect the disks to the built in 3132 controller. But if I connect the disks to the 3124 controller and create a RAID1 set, only the disks can be seen. I need to be able to use both controllers because I've got four disks that I want to build a RAID5 set on one of the controllers. Can anyone shed some light on this. Via Google I've read some articles about these controllers and I'm aware that I might have to rethink because of lacking support for the 3124 controller. I've read in the ata man page that parameters can be added to /boot/device.hints but I'm not sure how to handle this during installation. /Leslie Are you using the default ata(4) driver that FreeBSD-8 boots with, or are you loading the siis(4) module at boot? If you are using the ata(4) driver, you should try enabling the siis(4) driver by placing 'siis_load="YES"' in /boot/loader.conf. Beware that the names of your disks will transition from ad -> ada and will likely be renumbered as well. The siis(4) driver overall has a much richer feature set. I have several 3124 controllers which work great with it, but I have never tried using the controllers RAID - I simply use them as disk controllers and then pool the disks using ZFS. I installed with the 2 disks connected to the controller that was found by Freebsd. Then I added siis_load="YES" to /boot/loader.conf. Power down the machine and connected 4 drives to the 3124 controller. Upon restart I created a RAID5 set with the 4 drives in the controllers bios. Booted into FreeBSD but the RAID5 was not detected only the individual disks. This controller obviously does not work as expected. I need a suggestion on a not to expensive RAID controller that is supported by FreeBSD so that I can get the RAID5 set to work. Thanks /Leslie ___ 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: Silicon Image SiI 3124 and 3132 RAID controllers
On Thu, Mar 11, 2010 at 1:50 AM, Leslie Jensen wrote: > > > On 2010-03-10 23:12, Steve Polyack wrote: >> >> On 03/10/10 15:56, Leslie Jensen wrote: >>> >>> I'm trying to install FreeBSD 8-RELEASE on a machine with an Abit >>> aw8-max MB. This MB has a built in SiI 3132 RAID controller. I also >>> have an addon card with a SiI 3124 RAID controller. >>> >>> The problem is that I can see the 2 disks and the RAID1 set that I >>> want to use for the system if I connect the disks to the built in 3132 >>> controller. But if I connect the disks to the 3124 controller and >>> create a RAID1 set, only the disks can be seen. >>> >>> I need to be able to use both controllers because I've got four disks >>> that I want to build a RAID5 set on one of the controllers. >>> >>> Can anyone shed some light on this. Via Google I've read some articles >>> about these controllers and I'm aware that I might have to rethink >>> because of lacking support for the 3124 controller. >>> >>> I've read in the ata man page that parameters can be added to >>> /boot/device.hints but I'm not sure how to handle this during >>> installation. >>> >>> /Leslie >>> >>> >> Are you using the default ata(4) driver that FreeBSD-8 boots with, or >> are you loading the siis(4) module at boot? If you are using the ata(4) >> driver, you should try enabling the siis(4) driver by placing >> 'siis_load="YES"' in /boot/loader.conf. Beware that the names of your >> disks will transition from ad -> ada and will likely be renumbered as >> well. >> >> The siis(4) driver overall has a much richer feature set. I have several >> 3124 controllers which work great with it, but I have never tried using >> the controllers RAID - I simply use them as disk controllers and then >> pool the disks using ZFS. >> > > > I installed with the 2 disks connected to the controller that was found by > Freebsd. Then I added siis_load="YES" to /boot/loader.conf. > Power down the machine and connected 4 drives to the 3124 controller. Upon > restart I created a RAID5 set with the 4 drives in the controllers bios. > Booted into FreeBSD but the RAID5 was not detected only the individual > disks. > > This controller obviously does not work as expected. I need a suggestion on > a not to expensive RAID controller that is supported by FreeBSD so that I > can get the RAID5 set to work. > Thanks > /Leslie there were a bunch of sata and siis commits after the release of 8.0 I would suggest maybe trying RELENG_8 ___ 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"
Does compression on zfs pool affect performance? .......WAS, Re: Silicon Image SiI 3124 and 3132 RAID controllers
The solution for me was to create a raidz which gave me the same amount of space. Now I wonder, should I enable compression? Will it affect performance? Later I want to share this pool with SAMBA. Will SAMBA see the pool as a filesystem? Thanks /Leslie ___ 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: Does compression on zfs pool affect performance? .......WAS, Re: Silicon Image SiI 3124 and 3132 RAID controllers
In the last episode (Mar 11), Leslie Jensen said: > The solution for me was to create a raidz which gave me the same amount of > space. Now I wonder, should I enable compression? Will it affect > performance? The default lzjb compression is very fast and won't consume much CPU. If you have lots of easily-compressabe data it should improve performance. > Later I want to share this pool with SAMBA. Will SAMBA see the pool as a > filesystem? I don't think Samba cares about the filesystem layout, since it's a userland daemon. -- Dan Nelson dnel...@allantgroup.com ___ 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: Does compression on zfs pool affect performance? .......WAS, Re: Silicon Image SiI 3124 and 3132 RAID controllers
>- Original Message >From: Dan Nelson >In the last episode (Mar 11), Leslie Jensen said: >> The solution for me was to create a raidz which gave me the same amount of >> space. Now I wonder, should I enable compression? Will it affect >> performance? > >The default lzjb compression is very fast and won't consume much CPU. If >you have lots of easily-compressabe data it should improve performance. In informal testing I have found it depends on a lot of factors but is often a net gain. For instance, writes during testing in a VM running FBSD8 w/ ZFS writing to an attached single test "drive" on my not-terribly-fast XP laptop showed a significant improvement when I enabled compression on an FS, jumping from about 5 MB/s to easily 8+ MB/s. In testing at work on a FBSD8 guest on an ESX3.5 host running on a blade backed by a lightly loaded set of 24 15krpm drives, I found enabling compression didn't change much unless I tossed more than a single processor at it, at which point the gains were more tangible though not spectacular. I would suspect that it depends on the ratio of the speed of your CPU to the speed of your hard disk subsystem. Faster CPUs with slower disks will benefit more, slow CPUs with fast disks may even slow down. Obviously, what constitutes "Fast" and "Slow" is the big sticking point. :) ___ 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"
