On Apr 12, 2011, at 1:54 PM, Lamar Owen wrote:
> On Tuesday, April 12, 2011 02:51:45 PM John R Pierce wrote:
>> On 04/12/11 6:02 AM, Marian Marinov wrote:
>>>
>>> Yes... but with such RAID10 solution you get only half of the disk
>>> space... so
>>> from 10 2TB drives you get only 10TB instead of 16TB with RAID6.
>>
>> those disks are $100 each. whats your data worth?
>
> Where can I get an enterprise-class 2TB drive for $100?
This is a good point.
The cheapies are so called green as they spin down often which is not
what you want in a RAID setup.
While I've been able to tweak this in OSX, I haven't yet tried to see
what to do in Linux or Winblowz which I will eventually do as some
turd nugget bought a bunch of these for pro use.
> Commodity SATA isn't enterprise-class. SAS is; FC is, SCSI is. A
> 500GB FC drive with EMC firmware new is going to set you back ten
> times that, at least. What's youre data worth indeed, putting it on
> commodity disk.... :-)
>
>> in this case, the OP is talking about a 40TB array, so thats a TWENTY
>> TWO drive raid. NOONE I know in the storage business will use larger
>> than a 8 or 10 drive raid set.
>
> EMC allows RAID groups up to 16 drives on Clariion storage.
Yea, as does BlueArc, unsure of the rest but agreed.
- aurf
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