On 1/21/2017 9:02 AM, Valeri Galtsev wrote:
(yes, RAID60 is there too, but
too wasteful for simple things we do).
no raid group should be over 10-12 drives, so if you have a really large
array, say 30 drives, its best to stripe three raid6's of 10 drives
each, or whatever.
--
john r
On Sat, January 21, 2017 12:16 am, Keith Keller wrote:
> On 2017-01-20, Valeri Galtsev wrote:
>>
>> Hm, not certain what process you describe. Most of my controllers are
>> 3ware and LSI, I just pull failed drive (and I know phailed physical
>> drive
>> number), put
On 2017-01-20, Valeri Galtsev wrote:
>
> Hm, not certain what process you describe. Most of my controllers are
> 3ware and LSI, I just pull failed drive (and I know phailed physical drive
> number), put good in its place and rebuild stars right away.
I know for sure
I was just trying to be helpful.
*backs away slowly*
Cameron
On Fri, Jan 20, 2017 at 5:16 PM, Valeri Galtsev
wrote:
>
> On Fri, January 20, 2017 7:00 pm, Cameron Smith wrote:
> > Hi Valeri,
> >
> >
> > Before you pull a drive you should check to make sure that doing
On Fri, January 20, 2017 7:00 pm, Cameron Smith wrote:
> Hi Valeri,
>
>
> Before you pull a drive you should check to make sure that doing so
> won't kill the whole array.
Wow! What did I say to make you treat me as an ultimate idiot!? ;-) All my
comments, at least in my own reading, we about
Hi Valeri,
Before you pull a drive you should check to make sure that doing so
won't kill the whole array.
MegaCli can help you prevent a storage disaster and can let you have more
insight into your RAID and the status of the virtual disks and the disks
than make up each array.
MegaCli will
On 01/20/2017 09:31 AM, Peter Peltonen wrote:
I am planning to have RAID1 setup and I am wondering if I should use
the controller's RAID functionality which has 2GB cache or should I go
with JBOD + Linux software RAID?
I'd recommend testing the specific application that will run on this
On 1/20/2017 10:59 AM, Joseph L. Casale wrote:
Not related to your question, but something to keep in mind: What type of
enclosure are you using? If you are using an engineered system your enclosure
will communicate with the controller. When a disk fails it's a pain in the arse
to figure out
On Fri, January 20, 2017 5:16 pm, Joseph L. Casale wrote:
>> This is why before configuring and installing everything you may want to
>> attach drives one at a time, and upon boot take a note which physical
>> drive number the controller has for that drive, and definitely label it
>> so
>> y9ou
On 1/20/2017 9:31 AM, Peter Peltonen wrote:
I am planning to have RAID1 setup and I am wondering if I should use
the controller's RAID functionality which has 2GB cache or should I go
with JBOD + Linux software RAID?
The disks I am going to use are 6TB Seagate Enterprise ST6000NM0034
7200rpm
> This is why before configuring and installing everything you may want to
> attach drives one at a time, and upon boot take a note which physical
> drive number the controller has for that drive, and definitely label it so
> y9ou will know which drive to pull when drive failure is reported.
On Fri, January 20, 2017 12:59 pm, Joseph L. Casale wrote:
>> The disks I am going to use are 6TB Seagate Enterprise ST6000NM0034
>> 7200rpm SAS/12Gbit 128 MB
>
> Sorry to hear that, my experience is the Seagate brand has the shortest
> MTBF
> of any disk I have ever used...
>
>> If hardware RAID
> The disks I am going to use are 6TB Seagate Enterprise ST6000NM0034
> 7200rpm SAS/12Gbit 128 MB
Sorry to hear that, my experience is the Seagate brand has the shortest MTBF
of any disk I have ever used...
> If hardware RAID is preferred, the controller's cache could be updated
> to 4GB and I
- Original Message -
> From: "Peter Peltonen" <peter.pelto...@gmail.com>
> To: "CentOS mailing list" <centos@centos.org>
> Sent: Friday, 20 January, 2017 17:31:56
> Subject: [CentOS] CentOS 7 and Areca ARC-1883I SAS controller: JBOD or not
> to JBOD?
&g
Hi,
Does anyone have experiences about ARC-1883I SAS controller with CentOS7?
I am planning to have RAID1 setup and I am wondering if I should use
the controller's RAID functionality which has 2GB cache or should I go
with JBOD + Linux software RAID?
The disks I am going to use are 6TB Seagate
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