On 12-05-07 8:45 PM, Bob Friesenhahn wrote:
I see that there are a huge number of reads and hardy any reads. Are
you SURE that deduplication was not enabled for this pool? This is
the sort of behavior that one might expect if deduplication was
enabled without enough RAM or L2 read cache.
Bo
On Mon, 7 May 2012, Karl Rossing wrote:
On 12-05-07 12:18 PM, Jim Klimov wrote:
During the send you can also monitor "zpool iostat 1" and usual
"iostat -xnz 1" in order to see how busy the disks are and how
many IO requests are issued. The snapshots are likely sent in
the order of block age (TX
On 12-05-07 12:18 PM, Jim Klimov wrote:
During the send you can also monitor "zpool iostat 1" and usual
"iostat -xnz 1" in order to see how busy the disks are and how
many IO requests are issued. The snapshots are likely sent in
the order of block age (TXG number), which for a busy pool may
mean
Hi Karl,
Someone sitting across the table from me (who saw my posting)
informs me that CR 7060894 would not impact Solaris 10 releases,
so kindly withdrawn my comment about CR 7060894.
Thanks,
Cindy
On 5/7/12 11:35 AM, Cindy Swearingen wrote:
Hi Karl,
I like to verify that no dead or dying d
Hi Karl,
I like to verify that no dead or dying disk is killing pool
performance and your zpool status looks good. Jim has replied
with some ideas to check your individual device performance.
Otherwise, you might be impacted by this CR:
7060894 zfs recv is excruciatingly slow
This CR covers bo
2012-05-07 20:45, Karl Rossing цкщеу:
I'm wondering why the zfs send could be so slow. Could the other server
be slowing down the sas bus?
I hope other posters would have more relevant suggestions, but
you can see if the buses are contended by dd'ing from the drives.
At least that would give yo
On Nov 16, 2011, at 7:35 AM, David Dyer-Bennet wrote:
>
> On Tue, November 15, 2011 17:05, Anatoly wrote:
>> Good day,
>>
>> The speed of send/recv is around 30-60 MBytes/s for initial send and
>> 17-25 MBytes/s for incremental. I have seen lots of setups with 1 disk
>> to 100+ disks in pool. Bu
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Anatoly
>
> I've just made clean test for sequential data read. System has 45 mirror
> vdevs.
90 disks in the system... I bet you have a lot of ram?
> 2. Read file normally:
> # time dd if=
On Wed, Nov 16 at 9:35, David Dyer-Bennet wrote:
On Tue, November 15, 2011 17:05, Anatoly wrote:
Good day,
The speed of send/recv is around 30-60 MBytes/s for initial send and
17-25 MBytes/s for incremental. I have seen lots of setups with 1 disk
to 100+ disks in pool. But the speed doesn't v
On Wed, Nov 16, 2011 at 11:07 AM, Anatoly wrote:
> I've just made clean test for sequential data read. System has 45 mirror
> vdevs.
>
> 1. Create 160GB random file.
> 2. Read it to /dev/null.
> 3. Do Snaspshot and send it to /dev/null.
> 4. Compare results.
What OS?
The following is under Sola
Good day,
I've just made clean test for sequential data read. System has 45
mirror vdevs.
1. Create 160GB random file.
2. Read it to /dev/null.
3. Do Snaspshot and send it to /dev/null.
4. Compare results.
1. Write speed is slow due to 'urandom
On Tue, November 15, 2011 17:05, Anatoly wrote:
> Good day,
>
> The speed of send/recv is around 30-60 MBytes/s for initial send and
> 17-25 MBytes/s for incremental. I have seen lots of setups with 1 disk
> to 100+ disks in pool. But the speed doesn't vary in any degree. As I
> understand 'zfs se
On Tue, November 15, 2011 20:08, Edward Ned Harvey wrote:
>> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
>> boun...@opensolaris.org] On Behalf Of Anatoly
>>
>> The speed of send/recv is around 30-60 MBytes/s for initial send and
>> 17-25 MBytes/s for incremental. I have seen lot
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Anatoly
>
> The speed of send/recv is around 30-60 MBytes/s for initial send and
> 17-25 MBytes/s for incremental. I have seen lots of setups with 1 disk
I suggest watching zpool iostat before
On 11/16/11 01:01 PM, Eric D. Mudama wrote:
On Wed, Nov 16 at 3:05, Anatoly wrote:
Good day,
The speed of send/recv is around 30-60 MBytes/s for initial send and
17-25 MBytes/s for incremental. I have seen lots of setups with 1
disk to 100+ disks in pool. But the speed doesn't vary in any degr
On 11/15/11 23:40, Tim Cook wrote:
On Tue, Nov 15, 2011 at 5:17 PM, Andrew Gabriel
mailto:andrew.gabr...@oracle.com>> wrote:
On 11/15/11 23:05, Anatoly wrote:
Good day,
The speed of send/recv is around 30-60 MBytes/s for initial
send and 17-25 MBytes/s for increm
On Wed, Nov 16 at 3:05, Anatoly wrote:
Good day,
The speed of send/recv is around 30-60 MBytes/s for initial send and
17-25 MBytes/s for incremental. I have seen lots of setups with 1
disk to 100+ disks in pool. But the speed doesn't vary in any degree.
As I understand 'zfs send' is a limiti
On Tue, Nov 15, 2011 at 5:17 PM, Andrew Gabriel
wrote:
> On 11/15/11 23:05, Anatoly wrote:
>
>> Good day,
>>
>> The speed of send/recv is around 30-60 MBytes/s for initial send and
>> 17-25 MBytes/s for incremental. I have seen lots of setups with 1 disk to
>> 100+ disks in pool. But the speed do
On 11/15/11 23:05, Anatoly wrote:
Good day,
The speed of send/recv is around 30-60 MBytes/s for initial send and
17-25 MBytes/s for incremental. I have seen lots of setups with 1 disk
to 100+ disks in pool. But the speed doesn't vary in any degree. As I
understand 'zfs send' is a limiting fa
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