Roger Solano wrote:
Hello,
Does it make any sense to use a bunch of 15K SAS drives as L2ARC
cache for several TBs of SATA disks?
For example:
A STK2540 storage array with this configuration:
* Tray 1: Twelve (12) 146 GB @ 15K SAS HDDs.
Alternatively, you can purchase non-Sun 500
Roger Solano wrote:
Hello,
Does it make any sense to use a bunch of 15K SAS drives as L2ARC
cache for several TBs of SATA disks?
For example:
A STK2540 storage array with this configuration:
* Tray 1: Twelve (12) 146 GB @ 15K SAS HDDs.
* Tray 2: Twelve (12) 1 TB @ 7200 SATA
On Thu, 7 May 2009, Scott Lawson wrote:
A STK2540 storage array with this configuration:
* Tray 1: Twelve (12) 146 GB @ 15K SAS HDDs.
* Tray 2: Twelve (12) 1 TB @ 7200 SATA HDDs.
Just thought I would point out that these are hardware backed RAID
arrays. You might be better off using
Bob Friesenhahn wrote:
On Thu, 7 May 2009, Scott Lawson wrote:
A STK2540 storage array with this configuration:
* Tray 1: Twelve (12) 146 GB @ 15K SAS HDDs.
* Tray 2: Twelve (12) 1 TB @ 7200 SATA HDDs.
Just thought I would point out that these are hardware backed RAID
arrays. You
On Thu, 7 May 2009, Scott Lawson wrote:
Something nice about the STK2540 solution is that if the server system
dies. The STK2540's can quickly be swung over to another system via a quick
'zfs import'.
Sure provided they have it attached to a fibre channel switch or
have a nice long fibre lead.
On May 6, 2009, at 20:46, Bob Friesenhahn wrote:
After all this discussion, I am not sure if anyone adequately
answered the original poster's question as to whether at 2540 with
SAS 15K drives would provide substantial synchronous write
throughput improvement when used as a L2ARC device.
After all this discussion, I am not sure if anyone adequately answered the
original poster's question as to whether at 2540 with SAS 15K drives would
provide substantial synchronous write throughput improvement when used as
a L2ARC device.
I was under the impression that the L2ARC was to
On 7 mai 09, at 04:03, Adam Leventhal wrote:
After all this discussion, I am not sure if anyone adequately
answered the
original poster's question as to whether at 2540 with SAS 15K
drives would
provide substantial synchronous write throughput improvement when
used as
a L2ARC device.
I
Hello Roger,
Tuesday, May 5, 2009, 9:07:22 PM, you wrote:
Hello,
Does it make any sense to use a bunch of 15K SAS drives as L2ARC cache for several TBs of SATA disks?
For example:
A STK2540 storage array with this configuration:
Tray 1: Twelve (12) 146 GB @ 15K SAS HDDs.
Tray 2:
use a bunch of 15K SAS drives as L2ARC cache for several TBs of SATA disks?
perhaps... depends on the workload, and if the working set
can live on the L2ARC
used mainly as astronomical images repository
hmm, perhaps two trays of 1T SATA drives all
mirrors rather than raidz sets of one
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