On Mar 24, 2010, at 9:14 AM, Karl Rossing wrote:
> I believe that write caching is turned off on the boot drives or is it the 
> controller or both?

By default, ZFS will not enable volatile write caches on disks for SMI labeled
disk drives (eg boot).

> Which could be a big problem.

Actually, it is very rare that the synchronous write performance of a boot
drive is a performance problem.

Nonvolatile write caches are not a problem.

> On 03/24/10 11:07, Tim Cook wrote:
>> 
>> 
>> On Wed, Mar 24, 2010 at 11:01 AM, Dusan Radovanovic <dusa...@gmail.com> 
>> wrote:
>> Hello all,
>> 
>> I am a complete newbie to OpenSolaris, and must to setup a ZFS NAS. I do 
>> have linux experience, but have never used ZFS. I have tried to install 
>> OpenSolaris Developer 134 on a 11TB HW RAID-5 virtual disk, but after the 
>> installation I can only use one 2TB disk, and I cannot partition the rest. I 
>> realize that maximum partition size is 2TB, but I guess the rest must be 
>> usable. For hardware I am using HP ProLiant DL180G6, 12 1TB disks connected 
>> to P212 controller in RAID-5. Could someone direct me or suggest what I am 
>> doing wrong. Any help is greatly appreciated.

Simple. Make a small LUN, say 20GB or so, and install the OS there.
 -- richard

ZFS storage and performance consulting at http://www.RichardElling.com
ZFS training on deduplication, NexentaStor, and NAS performance
Las Vegas, April 29-30, 2010 http://nexenta-vegas.eventbrite.com 





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