27.08.2012 14:02, Sašo Kiselkov пишет:
Can someone with Supermicro JBOD equipped with SAS drives and LSI
HBA do this sequential read test?
Did that on a SC847 with 45 drives, read speeds around 2GB/s aren't a
problem.
Thanks for info.
Don't forget to set primarycache=none on testing
27.08.2012 14:02, Sašo Kiselkov пишет:
Can someone with Supermicro JBOD equipped with SAS drives and LSI
HBA do this sequential read test?
Did that on a SC847 with 45 drives, read speeds around 2GB/s aren't a
problem.
Thanks for info.
Don't forget to set primarycache=none on testing
27.08.2012 14:43, Sašo Kiselkov пишет:
Is there any way to disable ARC for testing and leave prefetch enabled?
No. The reason is quite simply because prefetch is a mechanism separate
from your direct application's read requests. Prefetch runs on ahead of
your anticipated read requests and
25.07.2012 9:29, Yuri Vorobyev пишет:
I faced with a strange performance problem with new disk shelf.
We a using ZFS system with SATA disks for a while.
What OS and release?
Oh. I forgot this important thing.
It is OpenIndiana oi_151a5 now.
New testing data:
I reboot to first boot
23.07.2012 21:59, Yuri Vorobyev пишет:
I faced with a strange performance problem with new disk shelf.
We a using ZFS system with SATA disks for a while.
What OS and release?
Oh. I forgot this important thing.
It is OpenIndiana oi_151a5 now.
New testing data:
I reboot to first boot
23.07.2012 19:39, Richard Elling пишет:
I faced with a strange performance problem with new disk shelf.
We a using ZFS system with SATA disks for a while.
What OS and release?
Oh. I forgot this important thing.
It is OpenIndiana oi_151a5 now.
Hello.
I faced with a strange performance problem with new disk shelf.
We a using ZFS system with SATA disks for a while.
It is Supermicro SC846-E16 chassis, Supermicro X8DTH-6F motherboard with
96Gb RAM and 24 HITACHI HDS723020BLA642 SATA disks attached to onboard
LSI 2008 controller.
Hello.
What the best practices for choosing ZFS volume volblocksize setting for
VMware VMFS-5?
VMFS-5 block size is 1Mb. Not sure how it corresponds with ZFS.
Setup details follow:
- 11 pairs of mirrors;
- 600Gb 15k SAS disks;
- SSDs for L2ARC and ZIL
- COMSTAR FC target;
- about 30 virtual
Hello.
It is possible to convert octal representation of zfs diff output to
something human readable?
Iconv may be?
Please see screenshot http://i.imgur.com/bHhXV.png
I create file with russian name there. OS is Solaris 11 Express.
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It is possible to convert octal representation of zfs diff output to
something human readable?
Iconv may be?
Please see screenshot http://i.imgur.com/bHhXV.png
I create file with russian name there. OS is Solaris 11 Express.
This command did the job:
zfs diff | perl -plne
http://www.lsi.com/channel/about_channel/whatsnew/warpdrive_slp300/index.html
I think drivers will be the problem.
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28.09.2010 10:45, Brandon High wrote:
Anyone had any look getting either OpenSolaris or FreeBSD with
zfs working on
I looked at it some, and all the hardware should be supported. There
is a half-height PCIe x16 and a x1 slot as well.
Somebody has already bought this microserver? :)
31.08.2010 21:23, Ray Van Dolson пишет:
Here's an article with some benchmarks:
http://wikis.sun.com/pages/viewpage.action?pageId=186241353
Seems to really impact IOPS.
This is really interesting reading. Can someone do same tests with Intel
X25-E?
As for the Vertex drives- if they are within +-10% of the Intel they're still
doing it for half of what the Intel drive costs- so it's an option- not a great
option- but still an option.
Yes, but Intel is SLC. Much more endurance.
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If anybody uses SSD for rpool more than half-year, can you post SMART
information about HostWrites attribute?
I want to see how SSD wear for system disk purposes.
I'd be happy to, exactly what commands shall I run?
Hm. I'm experimenting with OpenSolaris in virtual machine now.
Unfortunately
Hello.
Is all this data what your looking for?
Yes, thank you, Paul.
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Hello.
If anybody uses SSD for rpool more than half-year, can you post SMART
information about HostWrites attribute?
I want to see how SSD wear for system disk purposes.
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