Re: [zfs-discuss] zfs rewrite?

2007-02-15 Thread Matthew Ahrens
Pawel Jakub Dawidek wrote: What do you guys think about implementing 'zfs/zpool rewrite' command? It'll read every block older than the date when the command was executed and write it again (using standard ZFS COW mechanism, simlar to how resilvering works, but the data is read from the same

Re: [zfs-discuss] zfs rewrite?

2007-01-28 Thread Pawel Jakub Dawidek
On Fri, Jan 26, 2007 at 06:08:50PM -0800, Darren Dunham wrote: What do you guys think about implementing 'zfs/zpool rewrite' command? It'll read every block older than the date when the command was executed and write it again (using standard ZFS COW mechanism, simlar to how resilvering

Re: [zfs-discuss] zfs rewrite?

2007-01-28 Thread Frank Cusack
On January 28, 2007 4:59:48 PM +0100 Pawel Jakub Dawidek [EMAIL PROTECTED] wrote: On Fri, Jan 26, 2007 at 06:08:50PM -0800, Darren Dunham wrote: 3. I created file system with huge amount of data, where most of the data is read-only. I change my server from intel to sparc64 machine. Adaptive

Re[2]: [zfs-discuss] zfs rewrite?

2007-01-28 Thread Robert Milkowski
Hello Jeff, Saturday, January 27, 2007, 8:27:09 AM, you wrote: JB You're all correct. File data is never byte-swapped. Most metadata JB needs to be byte-swapped, but it's generally only 1-2% of your space. JB So the overhead shouldn't be significant, even if you never rewrite. I remember

Re: [zfs-discuss] zfs rewrite?

2007-01-27 Thread Toby Thain
On 27-Jan-07, at 4:57 AM, Frank Cusack wrote: On January 27, 2007 12:27:17 AM -0200 Toby Thain [EMAIL PROTECTED] wrote: On 26-Jan-07, at 11:34 PM, Pawel Jakub Dawidek wrote: 3. I created file system with huge amount of data, where most of the data is read-only. I change my server from intel

Re: [zfs-discuss] zfs rewrite?

2007-01-27 Thread Frank Cusack
On January 27, 2007 6:15:29 AM -0200 Toby Thain [EMAIL PROTECTED] wrote: On 27-Jan-07, at 4:57 AM, Frank Cusack wrote: On January 27, 2007 12:27:17 AM -0200 Toby Thain [EMAIL PROTECTED] wrote: On 26-Jan-07, at 11:34 PM, Pawel Jakub Dawidek wrote: 3. I created file system with huge amount of

Re: [zfs-discuss] zfs rewrite?

2007-01-26 Thread Darren Dunham
What do you guys think about implementing 'zfs/zpool rewrite' command? It'll read every block older than the date when the command was executed and write it again (using standard ZFS COW mechanism, simlar to how resilvering works, but the data is read from the same disk it is written to= ).

Re: [zfs-discuss] zfs rewrite?

2007-01-26 Thread Toby Thain
On 26-Jan-07, at 11:34 PM, Pawel Jakub Dawidek wrote: Hi. What do you guys think about implementing 'zfs/zpool rewrite' command? It'll read every block older than the date when the command was executed and write it again (using standard ZFS COW mechanism, simlar to how resilvering works,

Re: [zfs-discuss] zfs rewrite?

2007-01-26 Thread Frank Cusack
On January 27, 2007 12:27:17 AM -0200 Toby Thain [EMAIL PROTECTED] wrote: On 26-Jan-07, at 11:34 PM, Pawel Jakub Dawidek wrote: 3. I created file system with huge amount of data, where most of the data is read-only. I change my server from intel to sparc64 machine. Adaptive endianess only

Re: [zfs-discuss] zfs rewrite?

2007-01-26 Thread Jeff Bonwick
On Fri, Jan 26, 2007 at 10:57:19PM -0800, Frank Cusack wrote: On January 27, 2007 12:27:17 AM -0200 Toby Thain [EMAIL PROTECTED] wrote: On 26-Jan-07, at 11:34 PM, Pawel Jakub Dawidek wrote: 3. I created file system with huge amount of data, where most of the data is read-only. I change my