Mario 'BitKoenig' Holbe wrote:
Al Boldi [EMAIL PROTECTED] wrote:
But what still isn't clear, why can't raid1 use something like the
raid10 offset=2 mode?
RAID1 has equal data on all mirrors, so sooner or later you have to seek
somewhere - no matter how you layout the data on each mirror.
Al Boldi [EMAIL PROTECTED] wrote:
Don't underestimate the effects mere layout can have on multi-disk array
performance, despite it being highly hw dependent.
I can't see the difference between equal mirrors and somehow interleaved
layout on RAID1. Since you have to seek anyways, there should
Mario 'BitKoenig' Holbe wrote:
Al Boldi [EMAIL PROTECTED] wrote:
Don't underestimate the effects mere layout can have on multi-disk array
performance, despite it being highly hw dependent.
I can't see the difference between equal mirrors and somehow interleaved
layout on RAID1. Since you
If linux RAID-10 is still much slower than RAID-1 this discussion is kind
of moot, right?
Jeff
-
To unsubscribe from this list: send the line unsubscribe linux-raid in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Mario 'BitKoenig' Holbe wrote:
Neil Brown [EMAIL PROTECTED] wrote:
Skipping over blocks within a track is no faster than reading blocks
in the track, so you would need to make sure that your chunk size is
Not even no faster but probably even slower.
Surely slower, on conventional hds
Neil Brown [EMAIL PROTECTED] wrote:
Skipping over blocks within a track is no faster than reading blocks
in the track, so you would need to make sure that your chunk size is
Not even no faster but probably even slower.
For seek()+read() from userspace this gets smoothed by the kernel's
implicit
Neil Brown wrote:
On Tuesday October 17, [EMAIL PROTECTED] wrote:
I would like to propose an enhancement of raid 1 driver in linux kernel.
The enhancement would be speedup of data reading on mirrored partitions.
The idea is easy.
If we have mirrored partition over 2 disks, and these disk are in
On Thu, 2006-10-19 at 13:28 +1000, Neil Brown wrote:
On Tuesday October 17, [EMAIL PROTECTED] wrote:
I would like to propose an enhancement of raid 1 driver in linux kernel.
The enhancement would be speedup of data reading on mirrored partitions.
The idea is easy.
If we have mirrored
On Tuesday October 17, [EMAIL PROTECTED] wrote:
I would like to propose an enhancement of raid 1 driver in linux kernel.
The enhancement would be speedup of data reading on mirrored partitions.
The idea is easy.
If we have mirrored partition over 2 disks, and these disk are in sync, there
is
I would like to propose an enhancement of raid 1 driver in linux kernel.
The enhancement would be speedup of data reading on mirrored partitions.
The idea is easy.
If we have mirrored partition over 2 disks, and these disk are in sync, there is
possibility of simultaneous reading of the data from
10 matches
Mail list logo
