[zfs-discuss] need advice: ZFS config ideas for X4500 Thumper?

2007-01-23 Thread Neal Pollack
Hi: (Warning, new zfs user question) I am setting up an X4500 for our small engineering site file server. It's mostly for builds, images, doc archives, certain workspace archives, misc data. I'd like a trade off between space and safety of data. I have not set up a large ZFS system

Re: [zfs-discuss] need advice: ZFS config ideas for X4500 Thumper?

2007-01-23 Thread Jason J. W. Williams
Hi Neal, We've been getting pretty good performance out of RAID-Z2 with 3x 6-disk RAID-Z2 stripes. More stripes mean better performance all around...particularly on random reads. But as a file-server that's probably not a concern. With RAID-Z2 it seems to me 2 hot-spares is very sufficient, but

Re: [zfs-discuss] need advice: ZFS config ideas for X4500 Thumper?

2007-01-23 Thread Peter Tribble
On 1/23/07, Neal Pollack [EMAIL PROTECTED] wrote: Hi: (Warning, new zfs user question) I am setting up an X4500 for our small engineering site file server. It's mostly for builds, images, doc archives, certain workspace archives, misc data. ... Can someone provide an actual example

Re: [zfs-discuss] need advice: ZFS config ideas for X4500 Thumper?

2007-01-23 Thread Jason J. W. Williams
Hi Peter, Perhaps I'm a bit dense, but I've been befuddled by the x+y notation myself. Is it X stripes consisting of Y disks? Best Regards, Jason On 1/23/07, Peter Tribble [EMAIL PROTECTED] wrote: On 1/23/07, Neal Pollack [EMAIL PROTECTED] wrote: Hi: (Warning, new zfs user question)

Re: [zfs-discuss] need advice: ZFS config ideas for X4500 Thumper?

2007-01-23 Thread Peter Tribble
On 1/23/07, Jason J. W. Williams [EMAIL PROTECTED] wrote: Hi Peter, Perhaps I'm a bit dense, but I've been befuddled by the x+y notation myself. Is it X stripes consisting of Y disks? Sorry. Took a short cut on that bit. It's x data disks + y parity. So in the case of raidz1, y=1; in the

Re: [zfs-discuss] need advice: ZFS config ideas for X4500 Thumper?

2007-01-23 Thread Jason J. W. Williams
Hi Peter, Ah! That clears it up for me. Thank you. Best Regards, Jason On 1/23/07, Peter Tribble [EMAIL PROTECTED] wrote: On 1/23/07, Jason J. W. Williams [EMAIL PROTECTED] wrote: Hi Peter, Perhaps I'm a bit dense, but I've been befuddled by the x+y notation myself. Is it X stripes