Re: [zfs-discuss] Spare drive inherited cksum errors?

2012-05-28 Thread Stephan Budach
Am 28.05.12 00:35, schrieb Richard Elling: On May 27, 2012, at 12:52 PM, Stephan Budach wrote: Hi, today I issued a scrub on one of my zpools and after some time I noticed that one of the vdevs became degraded due to some drive having cksum errors. The spare kicked in and the drive got

Re: [zfs-discuss] Has anyone used a Dell with a PERC H310?

2012-05-28 Thread Ian Collins
On 05/ 7/12 04:08 PM, Ian Collins wrote: On 05/ 7/12 03:42 PM, Greg Mason wrote: I am currently trying to get two of these things running Illumian. I don't have any particular performance requirements, so I'm thinking of using some sort of supported hypervisor, (either RHEL and KVM or VMware

Re: [zfs-discuss] Has anyone used a Dell with a PERC H310?

2012-05-28 Thread Sašo Kiselkov
On 05/28/2012 10:48 AM, Ian Collins wrote: To follow up, the H310 appears to be useless in non-raid mode. The drives do show up in Solaris 11 format, but they show up as unknown, unformatted drives. One oddity is the box has two SATA SSDs which also show up the card's BIOS, but present OK

Re: [zfs-discuss] Has anyone used a Dell with a PERC H310?

2012-05-28 Thread Ian Collins
On 05/28/12 08:55 PM, Sašo Kiselkov wrote: On 05/28/2012 10:48 AM, Ian Collins wrote: To follow up, the H310 appears to be useless in non-raid mode. The drives do show up in Solaris 11 format, but they show up as unknown, unformatted drives. One oddity is the box has two SATA SSDs which also

Re: [zfs-discuss] Has anyone used a Dell with a PERC H310?

2012-05-28 Thread Sašo Kiselkov
On 05/28/2012 11:48 AM, Ian Collins wrote: On 05/28/12 08:55 PM, Sašo Kiselkov wrote: On 05/28/2012 10:48 AM, Ian Collins wrote: To follow up, the H310 appears to be useless in non-raid mode. The drives do show up in Solaris 11 format, but they show up as unknown, unformatted drives. One

Re: [zfs-discuss] Has anyone used a Dell with a PERC H310?

2012-05-28 Thread Ian Collins
On 05/28/12 10:53 PM, Sašo Kiselkov wrote: On 05/28/2012 11:48 AM, Ian Collins wrote: On 05/28/12 08:55 PM, Sašo Kiselkov wrote: On 05/28/2012 10:48 AM, Ian Collins wrote: To follow up, the H310 appears to be useless in non-raid mode. The drives do show up in Solaris 11 format, but they show

Re: [zfs-discuss] Has anyone used a Dell with a PERC H310?

2012-05-28 Thread Sašo Kiselkov
On 05/28/2012 12:59 PM, Ian Collins wrote: On 05/28/12 10:53 PM, Sašo Kiselkov wrote: On 05/28/2012 11:48 AM, Ian Collins wrote: On 05/28/12 08:55 PM, Sašo Kiselkov wrote: On 05/28/2012 10:48 AM, Ian Collins wrote: To follow up, the H310 appears to be useless in non-raid mode. The drives do

Re: [zfs-discuss] Has anyone used a Dell with a PERC H310?

2012-05-28 Thread Ian Collins
On 05/28/12 11:01 PM, Sašo Kiselkov wrote: On 05/28/2012 12:59 PM, Ian Collins wrote: On 05/28/12 10:53 PM, Sašo Kiselkov wrote: On 05/28/2012 11:48 AM, Ian Collins wrote: On 05/28/12 08:55 PM, Sašo Kiselkov wrote: On 05/28/2012 10:48 AM, Ian Collins wrote: To follow up, the H310 appears to

Re: [zfs-discuss] Has anyone used a Dell with a PERC H310?

2012-05-28 Thread Sašo Kiselkov
On 05/28/2012 01:12 PM, Ian Collins wrote: On 05/28/12 11:01 PM, Sašo Kiselkov wrote: On 05/28/2012 12:59 PM, Ian Collins wrote: On 05/28/12 10:53 PM, Sašo Kiselkov wrote: On 05/28/2012 11:48 AM, Ian Collins wrote: On 05/28/12 08:55 PM, Sašo Kiselkov wrote: On 05/28/2012 10:48 AM, Ian

[zfs-discuss] Advanced Format HDD's - are we there yet? (or - how to buy a drive that won't be teh sux0rs on zfs)

2012-05-28 Thread Nathan Kroenert
Hi folks, Looking to get some larger drives for one of my boxes. It runs exclusively ZFS and has been using Seagate 2TB units up until now (which are 512 byte sector). Anyone offer up suggestions of either 3 or preferably 4TB drives that actually work well with ZFS out of the box? (And not

Re: [zfs-discuss] Advanced Format HDD's - are we there yet? (or - how to buy a drive that won't be teh sux0rs on zfs)

2012-05-28 Thread Nigel W
On Mon, May 28, 2012 at 6:48 AM, Nathan Kroenert nat...@tuneunix.com wrote: Anyone offer up suggestions of either 3 or preferably 4TB drives that actually work well with ZFS out of the box? (And not perform like rubbish)... With our NCP 3 boxes the WD drives seem to be working okay (this is

[zfs-discuss] need information about ZFS API

2012-05-28 Thread Dhiraj Bhandare
Hi All I would like to create a sample application for ZFS using C++/C and libzfs. I am very new to ZFS, I would like to have an some information about ZFS API. Even some sample code will be useful. Looking for help and constructive suggestion. Thanks and regards, Dhiraj Bhandare

[zfs-discuss] Remedies for suboptimal mmap performance on zfs

2012-05-28 Thread Iwan Aucamp
I'm getting sub-optimal performance with an mmap based database (mongodb) which is running on zfs of Solaris 10u9. System is Sun-Fire X4270-M2 with 2xX5680 and 72GB (6 * 8GB + 6 * 4GB) ram (installed so it runs at 1333MHz) and 2 * 300GB 15K RPM disks - a few mongodb instances are running

Re: [zfs-discuss] Remedies for suboptimal mmap performance on zfs

2012-05-28 Thread Andrew Gabriel
On 05/28/12 20:06, Iwan Aucamp wrote: I'm getting sub-optimal performance with an mmap based database (mongodb) which is running on zfs of Solaris 10u9. System is Sun-Fire X4270-M2 with 2xX5680 and 72GB (6 * 8GB + 6 * 4GB) ram (installed so it runs at 1333MHz) and 2 * 300GB 15K RPM disks -

Re: [zfs-discuss] Remedies for suboptimal mmap performance on zfs

2012-05-28 Thread Lionel Cons
On Mon, May 28, 2012 at 9:06 PM, Iwan Aucamp aucam...@gmail.com wrote: I'm getting sub-optimal performance with an mmap based database (mongodb) which is running on zfs of Solaris 10u9. System is Sun-Fire X4270-M2 with 2xX5680 and 72GB (6 * 8GB + 6 * 4GB) ram (installed so it runs at 1333MHz)

Re: [zfs-discuss] Remedies for suboptimal mmap performance on zfs

2012-05-28 Thread Richard Elling
On May 28, 2012, at 12:46 PM, Lionel Cons wrote: On Mon, May 28, 2012 at 9:06 PM, Iwan Aucamp aucam...@gmail.com wrote: I'm getting sub-optimal performance with an mmap based database (mongodb) which is running on zfs of Solaris 10u9. System is Sun-Fire X4270-M2 with 2xX5680 and 72GB (6 *

[zfs-discuss] Remedies for suboptimal mmap performance on zfs

2012-05-28 Thread Iwan Aucamp
On 05/28/2012 10:12 PM, Andrew Gabriel wrote: On 05/28/12 20:06, Iwan Aucamp wrote: I'm thinking of doing the following: - relocating mmaped (mongo) data to a zfs filesystem with only metadata cache - reducing zfs arc cache to 16 GB Is there any other recommendations - and is above

Re: [zfs-discuss] need information about ZFS API

2012-05-28 Thread Richard Elling
Hi Dhiraj, On May 27, 2012, at 11:28 PM, Dhiraj Bhandare wrote: Hi All I would like to create a sample application for ZFS using C++/C and libzfs. I am very new to ZFS, I would like to have an some information about ZFS API. Even some sample code will be useful. Looking for help and

Re: [zfs-discuss] Remedies for suboptimal mmap performance on zfs

2012-05-28 Thread Richard Elling
question below... On May 28, 2012, at 1:25 PM, Iwan Aucamp wrote: On 05/28/2012 10:12 PM, Andrew Gabriel wrote: On 05/28/12 20:06, Iwan Aucamp wrote: I'm thinking of doing the following: - relocating mmaped (mongo) data to a zfs filesystem with only metadata cache - reducing zfs arc

Re: [zfs-discuss] Advanced Format HDD's - are we there yet? (or - how to buy a drive that won't be teh sux0rs on zfs)

2012-05-28 Thread Richard Elling
On May 28, 2012, at 5:48 AM, Nathan Kroenert wrote: Hi folks, Looking to get some larger drives for one of my boxes. It runs exclusively ZFS and has been using Seagate 2TB units up until now (which are 512 byte sector). Anyone offer up suggestions of either 3 or preferably 4TB drives

Re: [zfs-discuss] Has anyone used a Dell with a PERC H310?

2012-05-28 Thread Richard Elling
On May 28, 2012, at 2:48 AM, Ian Collins wrote: On 05/28/12 08:55 PM, Sašo Kiselkov wrote: On 05/28/2012 10:48 AM, Ian Collins wrote: To follow up, the H310 appears to be useless in non-raid mode. The drives do show up in Solaris 11 format, but they show up as unknown, unformatted drives.

Re: [zfs-discuss] Remedies for suboptimal mmap performance on zfs

2012-05-28 Thread Lionel Cons
On 28 May 2012 22:10, Richard Elling richard.ell...@gmail.com wrote: The only recommendation which will lead to results is to use a different OS or filesystem. Your choices are - FreeBSD with ZFS - Linux with BTRFS - Solaris with QFS - Solaris with UFS - Solaris with NFSv4, use ZFS on

Re: [zfs-discuss] Remedies for suboptimal mmap performance on zfs

2012-05-28 Thread Richard Elling
[Apologies to the list, this has expanded past ZFS, if someone complains, we can move the thread to another illumos dev list] On May 28, 2012, at 2:18 PM, Lionel Cons wrote: On 28 May 2012 22:10, Richard Elling richard.ell...@gmail.com wrote: The only recommendation which will lead to results

Re: [zfs-discuss] need information about ZFS API

2012-05-28 Thread Ian Collins
On 05/29/12 08:32 AM, Richard Elling wrote: Hi Dhiraj, On May 27, 2012, at 11:28 PM, Dhiraj Bhandare wrote: Hi All I would like to create a sample application for ZFS using C++/C and libzfs. I am very new to ZFS, I would like to have an some information about ZFS API. Even some sample

Re: [zfs-discuss] Remedies for suboptimal mmap performance on zfs

2012-05-28 Thread Jim Klimov
2012-05-29 0:34, Richard Elling wrote: I'd be interested in the results of such tests. You can change the primarycache parameter on the fly, so you could test it in less time than it takes for me to type this email :-) I believe it would also take some time for memory distribution to settle,

Re: [zfs-discuss] Advanced Format HDD's - are we there yet? (or - how to buy a drive that won't be teh sux0rs on zfs)

2012-05-28 Thread Daniel Carosone
On Mon, May 28, 2012 at 09:23:25AM -0600, Nigel W wrote: After a snafu last week at $work where a 512 byte pool would not resilver with a 4K drive plugged in, it appears that (keep in mind that these are consumer drives) Seagate no longer manufactures the 7200.12 series drives which has a

Re: [zfs-discuss] Remedies for suboptimal mmap performance on zfs

2012-05-28 Thread Daniel Carosone
On Mon, May 28, 2012 at 01:34:18PM -0700, Richard Elling wrote: I'd be interested in the results of such tests. Me too, especially for databases like postgresql where there's a complementary cache size tunable within the db that often needs to be turned up, since they implicitly rely on some

Re: [zfs-discuss] Spare drive inherited cksum errors?

2012-05-28 Thread Stephan Budach
Hi all, just to wrap this issue up: as FMA didn't report any other error than the one which led to the degradation of the one mirror, I detached the original drive from the zpool which flagged the mirror vdev as ONLINE (although there was still a cksum error count of 23 on the spare drive).

Re: [zfs-discuss] Spare drive inherited cksum errors?

2012-05-28 Thread Richard Elling
On May 28, 2012, at 9:21 PM, Stephan Budach wrote: Hi all, just to wrap this issue up: as FMA didn't report any other error than the one which led to the degradation of the one mirror, I detached the original drive from the zpool which flagged the mirror vdev as ONLINE (although there

Re: [zfs-discuss] Advanced Format HDD's - are we there yet? (or - how to buy a drive that won't be teh sux0rs on zfs)

2012-05-28 Thread Nigel W
On Mon, May 28, 2012 at 6:13 PM, Daniel Carosone d...@geek.com.au wrote: On Mon, May 28, 2012 at 09:23:25AM -0600, Nigel W wrote: After a snafu last week at $work where a 512 byte pool would not resilver with a 4K drive plugged in, it appears that (keep in mind that these are consumer drives)

Re: [zfs-discuss] Advanced Format HDD's - are we there yet? (or - how to buy a drive that won't be teh sux0rs on zfs)

2012-05-28 Thread Bill Sommerfeld
On 05/28/12 17:13, Daniel Carosone wrote: There are two problems using ZFS on drives with 4k sectors: 1) if the drive lies and presents 512-byte sectors, and you don't manually force ashift=12, then the emulation can be slow (and possibly error prone). There is essentially an