Re: [osol-discuss] [zfs-discuss] zfs snapshot and zil

2011-10-18 Thread Edward Ned Harvey
From: opensolaris-discuss-boun...@opensolaris.org [mailto:opensolaris- discuss-boun...@opensolaris.org] On Behalf Of Dmitry G. Kozhinov I need to know exactly when the snapshot gets committed to the disk so I can backup my disk. You access your disk (for backup purpose) via operating

Re: [osol-discuss] [zfs-discuss] zfs snapshot and zil

2011-10-17 Thread Gmail
Hi Edward, My question was does snapshot instantly get committed to disk or its kept in memory till next TXG. If its kept in memory till next TXG will sync=always solve this problem. Regards, Justin Skariah. On 10/14/2011 05:33 PM, Edward Ned Harvey wrote: From:

Re: [osol-discuss] [zfs-discuss] zfs snapshot and zil

2011-10-17 Thread Gmail
Its a problem if I am going to take a backup of the disk on which ZFS resides, for eg: if its a enterprise storage. So I need to know exactly when the snapshot gets committed to the disk so I can backup my disk. Regards, Justin Skariah. On 10/15/2011 05:47 PM, Edward Ned Harvey wrote: From:

Re: [osol-discuss] [zfs-discuss] zfs snapshot and zil

2011-10-17 Thread Dmitry G. Kozhinov
I need to know exactly when the snapshot gets committed to the disk so I can backup my disk. You access your disk (for backup purpose) via operating system. The OS will show you the disk in the logical state in which it got after all write operations, regardless of whether they were

Re: [osol-discuss] [zfs-discuss] zfs snapshot and zil

2011-10-15 Thread Edward Ned Harvey
From: Gmail [mailto:justin.skar...@gmail.com] My question was does snapshot instantly get committed to disk or its kept in memory till next TXG. If its kept in memory till next TXG will sync=always solve this problem. So, *if* it's committed in the next TXG, why do you care and why are

[osol-discuss] [zfs-discuss] zfs snapshot and zil

2011-10-14 Thread Justin Skariah
Hello Everybody, I have a doubt regarding zfs snapshots. When I take a zfs snapshot does it commit to the disk after logging in ZIL or it remains in ZIL till a DMU transaction group commit happens. If it remains in ZIL, is it possible to commit it to the disk at that time. will the following

Re: [osol-discuss] [zfs-discuss] zfs snapshot and zil

2011-10-14 Thread Edward Ned Harvey
From: opensolaris-discuss-boun...@opensolaris.org [mailto:opensolaris- discuss-boun...@opensolaris.org] On Behalf Of Justin Skariah I have a doubt regarding zfs snapshots. When I take a zfs snapshot does it commit to the disk after logging in ZIL or it remains in ZIL till a DMU transaction