On 11/16/2010 10:47 AM, John R Pierce wrote:
>
> raid sets really shouldn't be much bigger than about 8 drives,
> anyways. rebuild times for a 12 drive raid6 would be astronomical.
>
You are ok up to here. Rebuild time for replacement of a failed drive
scales by drive size, not raid set size, r
On 11/16/10 10:41 AM, Benjamin Franz wrote:
> Oh, I agree - and when price is no object, or if write performance is
the price spread isn't that big of a deal.
a 6-drive raid-6 gives you 4x space, while a 6 drive raid-10 gives you
3X.not that big of a deal.
an 8-drive RAID-6 gives you 6X spa
On 11/16/2010 09:25 AM, John R Pierce wrote:
>
> These days of cheap drives, I use raid10 almost exclusively. and if its
> at all mission critical, I like to have 1-2 hotspares. if I was
> deploying a new server, and its workload was at all database-centric,
> I'd want to use use 2.5" SAS rather
On 11/16/10 8:31 AM, Benjamin Franz wrote:
> In these days of multi-terabyte drives you should be looking at RAID6
> instead. The chances of a 'double failure' during degraded
> operation/resync is too high to ignore.
These days of cheap drives, I use raid10 almost exclusively. and if its
at al
On November 16, 2010 08:31:05 am Benjamin Franz wrote:
> On 11/15/2010 10:41 AM, Gilbert Sebenste wrote:
> > Thanks John, I appreciate it! Both are being replaced after a nearby 55
> > KV power line shorted to ground and blew a manhole cover 50' into the
> > air, damaging a lot of equipment over he
On 11/15/2010 10:41 AM, Gilbert Sebenste wrote:
> Thanks John, I appreciate it! Both are being replaced after a nearby 55
> KV power line shorted to ground and blew a manhole cover 50' into the air,
> damaging a lot of equipment over here, even those on UPS's. Nobody was
> hurt, thank goodness. But
On Wed, 10 Nov 2010, John R Pierce wrote:
> On 11/10/10 6:58 PM, Gilbert Sebenste wrote:
>> Hey everyone,
>>
>> I just got one of these today:
>>
>> Nov 10 16:07:54 stormy kernel: sd 0:0:0:0: SCSI error: return code =
>> 0x0800
>> Nov 10 16:07:54 stormy kernel: sda: Current: sense key: Me
On 11/10/10 6:58 PM, Gilbert Sebenste wrote:
> Hey everyone,
>
> I just got one of these today:
>
> Nov 10 16:07:54 stormy kernel: sd 0:0:0:0: SCSI error: return code =
> 0x0800
> Nov 10 16:07:54 stormy kernel: sda: Current: sense key: Medium Error
> Nov 10 16:07:54 stormy kernel: Add. Sens
Hey everyone,
I just got one of these today:
Nov 10 16:07:54 stormy kernel: sd 0:0:0:0: SCSI error: return code =
0x0800
Nov 10 16:07:54 stormy kernel: sda: Current: sense key: Medium Error
Nov 10 16:07:54 stormy kernel: Add. Sense: Unrecovered read error
Nov 10 16:07:54 stormy kernel:
N
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