| To: | Homer Li <01jay.ly@xxxxxxxxx> |
|---|---|
| Subject: | Re: Copy file , file blocks is different |
| From: | Dave Chinner <david@xxxxxxxxxxxxx> |
| Date: | Thu, 24 Jan 2013 21:42:45 +1100 |
| Cc: | xfs@xxxxxxxxxxx |
| Delivered-to: | xfs@xxxxxxxxxxx |
| In-reply-to: | <CAG1+85EwFH9mGkVqs=nkSVaX0J82iDMMbQ=____dRstUSsmJpw@xxxxxxxxxxxxxx> |
| References: | <CAG1+85EwFH9mGkVqs=nkSVaX0J82iDMMbQ=____dRstUSsmJpw@xxxxxxxxxxxxxx> |
| User-agent: | Mutt/1.5.21 (2010-09-15) |
On Thu, Jan 24, 2013 at 05:48:25PM +0800, Homer Li wrote: > Hello, > > There are 2 file in the xfs device, md5 is the same, but the size is > different. > I don't know why ....... Speculative preallocation. Google "XFS NFS speculative preallocation" - I've explained it plenty of times on this list and don't need to do it again. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx |
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