[zfs-discuss] zfs source documentation

2008-12-14 Thread kavita
Is there a documentation available for zfs source code? -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

[zfs-discuss] Need Help Invalidating Uberblock

2008-12-14 Thread Nathan Hand
I have a ZFS pool that has been corrupted. The pool contains a single device which was actually a file on UFS. The machine was accidentally halted and now the pool is corrupt. There are (of course) no backups and I've been asked to recover the pool. The system panics when trying to do anything w

Re: [zfs-discuss] UFS over zvol major performance hit

2008-12-14 Thread Bob Friesenhahn
On Mon, 15 Dec 2008, Ahmed Kamal wrote: > > RandomWrite-8k: 0.9M/s > SingleStreamWriteDirect1m: 5.8M/s (??) > MultiStreamWrite1m: 33M/s > MultiStreamWriteDirect1m: 11M/s > > Obviously, there's a major hit. Can someone please shed some light as to why > this is happening ? If more info is re

[zfs-discuss] UFS over zvol major performance hit

2008-12-14 Thread Ahmed Kamal
Hi, I have been doing some basic performance tests, and I am getting a big hit when I run UFS over a zvol, instead of directly using zfs. Any hints or explanations is very welcome. Here's the scenario. The machine has 30G RAM, and two IDE disks attached. The disks have 2 fdisk partitons (c4d0p2, c

Re: [zfs-discuss] ZFS as a Gateway for a stroage network

2008-12-14 Thread Dave Brown
You might want to look into the products from a company called DataCore Software, http://datacore.com/products/prod_home.asp. I've used them and they are great stuff. They make very high performing iSCSI and FC storage controllers out of leveraging commodity hardware, like the one comment

Re: [zfs-discuss] zpol mirror creation after non-mirrored zpool is setup

2008-12-14 Thread Mark Dornfeld
Thanks everyone for your answers. I am ashamed to say that I have become lax in reading documentation due to the high quality of the forums. Of course, my question was easily answered both by reading docs and quick responses. I rarely see anyone telling a questioner to RTFM anymore since th

Re: [zfs-discuss] zpol mirror creation after non-mirrored zpool is setup

2008-12-14 Thread Bob Netherton
Jeff Bonwick wrote: > On Sat, Dec 13, 2008 at 04:44:10PM -0800, Mark Dornfeld wrote: >> I have installed Solaris 10 on a ZFS filesystem that is not mirrored. Since >> I have an identical disk in the machine, I'd like to add that disk to the >> existing pool as a mirror. Can this be done, and if

Re: [zfs-discuss] ZFS as a Gateway for a stroage network

2008-12-14 Thread Ross
I don't have any statistics myself, but if you search the forum for iscsi, there was a long thread a few months back with some performance figures. I didn't really do that much testing myself, once I hit the iscsi bug there wasn't any point doing much more. There has been some work on that rec

Re: [zfs-discuss] Hybrid Pools - Since when?

2008-12-14 Thread Richard Elling
Andrew Gabriel wrote: > Rafael Friedlander wrote: > >> Hi, >> >> Does anyone know since when hybrid pools are available in ZFS? Are there >> ZFS "versions"? >> >> XVM Server is based on Nevada b93, and I need to know if it supports >> hybrid pools. >> >> > > Hybrid pool slogs (ZIL) wer

Re: [zfs-discuss] Hybrid Pools - Since when?

2008-12-14 Thread Chris Ridd
On 14 Dec 2008, at 16:58, Andrew Gabriel wrote: > Rafael Friedlander wrote: >> Hi, >> >> Does anyone know since when hybrid pools are available in ZFS? Are >> there >> ZFS "versions"? >> >> XVM Server is based on Nevada b93, and I need to know if it supports >> hybrid pools. >> > > Hybrid pool

Re: [zfs-discuss] Hybrid Pools - Since when?

2008-12-14 Thread Andrew Gabriel
Rafael Friedlander wrote: > Hi, > > Does anyone know since when hybrid pools are available in ZFS? Are there > ZFS "versions"? > > XVM Server is based on Nevada b93, and I need to know if it supports > hybrid pools. > Hybrid pool slogs (ZIL) were introduced in Nevada builds 68 and 69, and is

Re: [zfs-discuss] ZFS as a Gateway for a stroage network

2008-12-14 Thread Bob Friesenhahn
On Sun, 14 Dec 2008, Dak wrote: > dedicated storage pools. With a JOBOD I will run into the same > problems which I have at this moment if the number of server is > growing, won't I? Is there some other way you would recommend in > order to solve this problem (one big storage pool; several backu

Re: [zfs-discuss] ZFS as a Gateway for a stroage network

2008-12-14 Thread Dak
Dave, what kind of hardware did you used? I am scared about the bandwith and I/O throughput of the zfs gateway. -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/list

Re: [zfs-discuss] ZFS as a Gateway for a stroage network

2008-12-14 Thread Dak
Bob, thank you very much for your detailed answer. Indeed, Resilvering could be a very difficult situation in such a big storage pool. I could solve this issue by building a pool for each backend node. But then I run into the same problems I have at this moment: The disk space of my server is he

Re: [zfs-discuss] ZFS as a Gateway for a stroage network

2008-12-14 Thread Dak
That is very interesting. What kind of hardware did you use? Do you have any statistics about throughput and I/O behavior? Maybe you could provide the detailed architecture. Unfortunately I did not find your e-mail address in your user profile for direct contact. -- This message posted from ope

[zfs-discuss] Hybrid Pools - Since when?

2008-12-14 Thread Rafael Friedlander
Hi, Does anyone know since when hybrid pools are available in ZFS? Are there ZFS "versions"? XVM Server is based on Nevada b93, and I need to know if it supports hybrid pools. TIA, Rafael. -- => Rafael Friedlander => Sun Microsystems => OEM Specialist => +972 544 971 564 __

Re: [zfs-discuss] ZFS home server SATA disk setup

2008-12-14 Thread Ross
That card does work well, and uses the same chipset as the Thumper. I've found that there are some issues with hot swap, but other than that it works fine. I've got one in a live ZFS server right now. -- This message posted from opensolaris.org ___ z

Re: [zfs-discuss] ZFS as a Gateway for a stroage network

2008-12-14 Thread Ross
This is basically the setup I suggested a year or so ago. While the theory is sound, the major problem with it is that iSCSI and ZFS are not a great combination when a device (in your case server) goes down. If you create a pool of several iSCSI devices, when any one fails, the entire pool wil