On Jan 23, 2010, at 12:12 PM, Bob Friesenhahn wrote:
> On Sat, 23 Jan 2010, A. Krijgsman wrote:
>
>> Just to jump in.
>>
>> Did you guys ever consider to shortstroke a larger sata disk?
>> I'm not familiar with this, but read a lot about it;
>>
>> Since the drive cache gets larger on the bigger drives.
>> Bringing back a disk to roughly 25% of its capicity would give better cache
>> ratio and less seektime.
>
> Consider that a drive cache may be 16MB but the ZFS ARC cache can span up to
> 128GB of RAM in current servers, or much larger if SSDs are used to add a
> L2ARC.
Wimpy servers! To rewrite for 2010,
Consider that a drive cache may be 16MB but the ZFS ARC cache can span
up to
4 TB of RAM in current servers, or much larger if SSDs are used to add
a L2ARC.
:-)
-- richard
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
