Re: [zfs-discuss] zfs umount -a in a global zone

2007-01-14 Thread Wee Yeh Tan
Hi Robert, On 1/14/07, Robert Milkowski <[EMAIL PROTECTED]> wrote: I did 'zfs umount -a' in a global zone and all (non busy) datasets also in local zone were unmounted (one dataset was delegated to the local zone and other datasets were created inside). Well, I belive it shouldn't be th

Re: [zfs-discuss] Seven questions for a newbie

2007-01-14 Thread Wee Yeh Tan
On 1/15/07, mike <[EMAIL PROTECTED]> wrote: 1) Is a hardware-based RAID behind the scenes needed? Can ZFS safely be considered a replacement for that? I assume that anything below the filesystem level in regards to redundancy could be an added bonus, but is it necessary at all? ZFS is more reli

Re: [zfs-discuss] Multiple Read one Writer Filesystem

2007-01-14 Thread Erik Trimble
Not to be a ninny, but a one-write/many read is pretty much the design scenario for using CacheFS in conjunction with NFS on the client side. That is, assuming that only one client is doing the writing. If all your clients are doing writing (just maybe not to the same file), then you DON'T hav

Re: [zfs-discuss] Multiple Read one Writer Filesystem

2007-01-14 Thread Jonathan Edwards
On Jan 14, 2007, at 21:37, Wee Yeh Tan wrote: On 1/15/07, Torrey McMahon <[EMAIL PROTECTED]> wrote: Mike Papper wrote: > > The alternative I am considering is to have a single filesystem > available to many clients using a SAN (iSCSI in this case). However > only one client would mount the ZFS

[zfs-discuss] Seven questions for a newbie

2007-01-14 Thread mike
1) Is a hardware-based RAID behind the scenes needed? Can ZFS safely be considered a replacement for that? I assume that anything below the filesystem level in regards to redundancy could be an added bonus, but is it necessary at all? 2) I am looking into building a 10-drive system using 750GB or

Re: [zfs-discuss] Multiple Read one Writer Filesystem

2007-01-14 Thread Eric Schrock
On Sun, Jan 14, 2007 at 07:06:20PM -0800, Mike Papper wrote: > Thanks for the feedback, it seems caching is the main concern and if I > always only write any given file once (then perhaps do a flush and a > close after the write to empty the cache) and from then only ever read > the file, will t

Re: [zfs-discuss] Multiple Read one Writer Filesystem

2007-01-14 Thread Mike Papper
Thanks for the feedback, it seems caching is the main concern and if I always only write any given file once (then perhaps do a flush and a close after the write to empty the cache) and from then only ever read the file, will the scheme I had in mind work? Also, will ZFS really prevent my moun

Re: [zfs-discuss] optimal zpool layout?

2007-01-14 Thread Wee Yeh Tan
On 1/13/07, Richard Elling <[EMAIL PROTECTED]> wrote: And a third choice is cutting your 40GByte drives in two such that you have a total of 6x 20 GByte partitions spread across your 80 and 40 GByte drives. Then install three 2-way mirrors across the disks. Some people like such things, and the

[zfs-discuss] Re: optimal zpool layout?

2007-01-14 Thread Patrick P Korsnick
thanks all for the feedback! i definitely learned a lot-- storage isn't anywhere near my field of expertise, so it's great to get some real examples to go with all the buzzwords you hear around the watercooler. ;) i'll probably give one of the raid-z or mirroring setups suggested a try when i

Re: [zfs-discuss] Multiple Read one Writer Filesystem

2007-01-14 Thread Wee Yeh Tan
On 1/15/07, Torrey McMahon <[EMAIL PROTECTED]> wrote: Mike Papper wrote: > > The alternative I am considering is to have a single filesystem > available to many clients using a SAN (iSCSI in this case). However > only one client would mount the ZFS filesystem as read/write while the > others woul

Re: [zfs-discuss] Multiple Read one Writer Filesystem

2007-01-14 Thread Torrey McMahon
Mike Papper wrote: The alternative I am considering is to have a single filesystem available to many clients using a SAN (iSCSI in this case). However only one client would mount the ZFS filesystem as read/write while the others would mount it read-only. For my application, all files are wri

[zfs-discuss] Multiple Read one Writer Filesystem

2007-01-14 Thread Mike Papper
Hi, I am considering using ZFS so that multiple clients can "share" the same filesystem. I know that ZFS does not support a distributed filesystem. The alternative I am considering is to have a single filesystem available to many clients using a SAN (iSCSI in this case). However only one clien

RE: [zfs-discuss] On the SATA framework

2007-01-14 Thread Brian Hechinger
After having read that, I have to say Bravo to that team. It really sounds like they are doing a great job. This raises the question of when will the SATA framework be available for testing? -brian -Original Message- From: "Richard Elling" <[EMAIL PROTECTED]> To: zfs-discuss@opensolari