> Once the famous bp rewriter is integrated and a defrag functionality
> built on top of it you will be able to re-arrange your data again so it
> is sequential again.
Then again, this would also rearrange your data to be sequential again:
cp -p somefile somefile.tmp ; mv -f somefile.tmp somefile
> I wonder if it is a real problem, ie, for example cause longer backup
> time, will it be addressed in future?
It doesn't cause longer backup time, as long as you're doing a "zfs send |
zfs receive" But it could cause longer backup time if you're using
something like tar.
The only way to "solve
On 24/02/2010 02:21, v wrote:
Hi,
Thanks for the reply.
So the problem of sequential read after random write problem exist in zfs.
I wonder if it is a real problem, ie, for example cause longer backup time,
will it be addressed in future?
Once the famous bp rewriter is integrated and a de
Hi,
Thanks for the reply.
So the problem of sequential read after random write problem exist in zfs.
I wonder if it is a real problem, ie, for example cause longer backup time,
will it be addressed in future?
So I should ask anther question: is zfs suitable for an environment that has
lots of da
On 23/02/2010 17:18, Richard Elling wrote:
On Feb 23, 2010, at 1:00 AM, v wrote:
Hi experts,
I am new to zfs and ask a question regarding zfs sequential peroformance: I read some
blogs saying that netapp's WAFL can suffer "sequential read after random
write(SRARW)" performance penalty, si
On Feb 23, 2010, at 1:00 AM, v wrote:
> Hi experts,
> I am new to zfs and ask a question regarding zfs sequential peroformance: I
> read some blogs saying that netapp's WAFL can suffer "sequential read after
> random write(SRARW)" performance penalty, since zfs is also doing no update
> in plac
On 23/02/2010 09:00, v wrote:
Hi experts,
I am new to zfs and ask a question regarding zfs sequential peroformance: I read some
blogs saying that netapp's WAFL can suffer "sequential read after random
write(SRARW)" performance penalty, since zfs is also doing no update in place, can
zfs has su
Hi experts,
I am new to zfs and ask a question regarding zfs sequential peroformance: I
read some blogs saying that netapp's WAFL can suffer "sequential read after
random write(SRARW)" performance penalty, since zfs is also doing no update in
place, can zfs has such problem?
Thanks
Victor
--
T
