On 5/28/2013 4:37 AM, Jean-Marc wrote:
...
> Back to what I read, I have a question:
> - are RAID0 and RAID10,f2 performances quiet similar in term of random
> read or not ?
Similar, yes. Identical, no.
> - and if there are not, why people are publish these kind of infos on
> the mdadm wiki ?
T
On Sun, 26 May 2013 19:21:57 -0500, Stan Hoeppner
wrote:
Hi Stan, hi everybody,
> Hopefully I'm teaching not only you, but others, that trying to
> optimized performance of a -2 disk- array is a waste of -your- time.
I have to say I was a little bit disappointed after this.
I took time to read
On 5/26/2013 5:40 AM, Jean-Marc wrote:
> OK. Thank's for your mail and sorry to make you loosing your time reading
> mine.
Don't apologize. I'm not wasting my time here. Quite the opposite.
Hopefully I'm teaching not only you, but others, that trying to
optimized performance of a -2 disk- arr
On 5/26/2013 4:26 AM, Richard Hector wrote:
> On 26/05/13 15:15, Stan Hoeppner wrote:
>> First there is no such thing as "RAID0". Second, "striping" is only fit
>> for temporary data. The OP is concerned with permanent data storage.
>
>>From mdadm(8):
>
>> Currently, Linux supports LINEAR md de
On Du, 26 mai 13, 00:36:43, Jean-Marc wrote:
> Hi guys,
>
> I am trying to measure the perf' of RAID arrays to be sure of the
> layout I'll use for my future set up.
>
> Based on this article, RAID10,f2 seems to be the best set up:
> https://raid.wiki.kernel.org/index.php/Performance
That articl
On Sat, 25 May 2013 18:32:59 -0500
Stan Hoeppner wrote:
Hi Stan,
> > May be I am doing something wrong.
>
> Yes, you are. You're using only 2 disk drives. The md/RAID10 module
> with two drives will perform nearly identical to RAID1.
>
> Adding insult to injury you are using 6GB partitions i
On Sat, 25 May 2013 18:32:59 -0500
Stan Hoeppner wrote:
Hi Stan,
> > May be I am doing something wrong.
>
> Yes, you are. You're using only 2 disk drives. The md/RAID10 module
> with two drives will perform nearly identical to RAID1.
>
> Adding insult to injury you are using 6GB partitions i
On 26/05/13 15:15, Stan Hoeppner wrote:
> First there is no such thing as "RAID0". Second, "striping" is only fit
> for temporary data. The OP is concerned with permanent data storage.
>From mdadm(8):
> Currently, Linux supports LINEAR md devices, RAID0 (striping),
> RAID1 (mirroring), RAID
On 5/25/2013 9:30 PM, green wrote:
> Stan Hoeppner wrote at 2013-05-25 18:32 -0500:
>> For two disks, use RAID1. PERIOD. End of story. Screwing with
>> anything else is a massive waste of your time. If you have 3 or more
>> disks, then you can worry about layouts.
>
> Or RAID0? That is, for 2
Stan Hoeppner wrote at 2013-05-25 18:32 -0500:
> For two disks, use RAID1. PERIOD. End of story. Screwing with
> anything else is a massive waste of your time. If you have 3 or more
> disks, then you can worry about layouts.
Or RAID0? That is, for 2 disks use RAID0 (performance gain) *or*
RAI
On 5/25/2013 5:36 PM, Jean-Marc wrote:
> Hi guys,
>
> I am trying to measure the perf' of RAID arrays to be sure of the layout
> I'll use for my future set up.
>
> Based on this article, RAID10,f2 seems to be the best set up:
> https://raid.wiki.kernel.org/index.php/Performance
>
> But if I crea
Hi guys,
I am trying to measure the perf' of RAID arrays to be sure of the layout
I'll use for my future set up.
Based on this article, RAID10,f2 seems to be the best set up:
https://raid.wiki.kernel.org/index.php/Performance
But if I create a RAID10,f2 array (ext4 FS) and if I compare its pe
12 matches
Mail list logo
