Bob Proulx a écrit :
Pascal Hambourg wrote:
Bob Proulx a écrit :
I favor RAID6's extra redundancy for more safety but I
still use RAID1 too.
RAID 1 can provide as much or more redundancy than RAID 6.
RAID 1 on 3 disks provides as much redundancy as RAID 6.
RAID 1 on 4 disks provides more
Pascal Hambourg wrote:
Bob Proulx a écrit :
Do you have any articles or blogs or postings you have written that
would summarize raid alternatives? I would enjoy reading whatever you
have written on the subject. Or if you recommended other references.
There is no need to write anything
Bob Proulx a écrit :
I favor RAID6's extra redundancy for more safety but I
still use RAID1 too.
RAID 1 can provide as much or more redundancy than RAID 6.
RAID 1 on 3 disks provides as much redundancy as RAID 6.
RAID 1 on 4 disks provides more redundancy than RAID 6 (but half the
usable
Hello Pascal,
Pascal Hambourg wrote:
Bob Proulx a écrit :
I favor RAID6's extra redundancy for more safety but I
still use RAID1 too.
RAID 1 can provide as much or more redundancy than RAID 6.
RAID 1 on 3 disks provides as much redundancy as RAID 6.
RAID 1 on 4 disks provides more
Gary Dale wrote:
Mart van de Wege wrote:
The problem is not that RAID5 does not provide resilience against a
single disk failure. The problem is that with modern disk capacities,
the chances of *another* disk failing while the array is rebuilding have
significantly risen.
Especially
Gary Dale a écrit :
On 05/12/14 03:35 PM, Pascal Hambourg wrote:
You can think of the RAID algorithms as parity checks. A mirror is even
parity.
This point of view is a bit twisted, but I can understand and won't argue.
While the disks are not physically assigned to be data or
parity,
Gary Dale extremegroundmai...@gmail.com writes:
On 04/12/14 12:51 PM, Dan Ritter wrote:
On Thu, Dec 04, 2014 at 02:13:59PM +0100, mad wrote:
Hi!
I wanted to create a RAID5 with lvm. The basic setup is something like
lvcreate --type raid5 -i 2 -L 1G -n my_lv my_vg
which would mean 3
On 05/12/14 05:01 AM, Mart van de Wege wrote:
Gary Dale extremegroundmai...@gmail.com writes:
On 04/12/14 12:51 PM, Dan Ritter wrote:
On Thu, Dec 04, 2014 at 02:13:59PM +0100, mad wrote:
Hi!
I wanted to create a RAID5 with lvm. The basic setup is something like
lvcreate --type raid5 -i 2
Hello,
Some mistakes in what you wrote.
Gary Dale a écrit :
RAID 1 and RAID 5 are both immune to single disk
failures in their most common configurations (1 or more data disks with
1 parity disk). RAID 10 is also immune to single disk failure but uses
half the disks for parity.
RAID 1
On 12/05/2014 03:35 PM, Pascal Hambourg wrote:
Linux can use a special RAID 10 mode (mirror+stripe) with two or three
disks.
with 6 disks, RAID 6 will give you double the capacity of 4 disks
or get you immunity to 3 disks failing.
RAID 6 can survive 2 disk failures regarless of the number
On 05/12/14 03:35 PM, Pascal Hambourg wrote:
Hello,
Some mistakes in what you wrote.
Gary Dale a écrit :
RAID 1 and RAID 5 are both immune to single disk
failures in their most common configurations (1 or more data disks with
1 parity disk). RAID 10 is also immune to single disk failure but
On Thu, Dec 04, 2014 at 02:13:59PM +0100, mad wrote:
Hi!
I wanted to create a RAID5 with lvm. The basic setup is something like
lvcreate --type raid5 -i 2 -L 1G -n my_lv my_vg
which would mean 3 physical drives would be used in this RAID5. But can
I specify that one drive is missing as
On 04/12/14 12:51 PM, Dan Ritter wrote:
On Thu, Dec 04, 2014 at 02:13:59PM +0100, mad wrote:
Hi!
I wanted to create a RAID5 with lvm. The basic setup is something like
lvcreate --type raid5 -i 2 -L 1G -n my_lv my_vg
which would mean 3 physical drives would be used in this RAID5. But can
I
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