Re: Software RAID10 - which two disks can fail?

2014-04-08 Thread bruno.debian
On 08/04/2014 05:54, Gary Dale wrote: On 07/04/14 03:48 PM, Rafał Radecki wrote: Hi All. I have a server which uses RAID10 made of 4 partitions for / and boots from it. It looks like so: mdadm -D /dev/md1 /dev/md1: Version : 00.90 Creation Time : Mon Apr 27 09:25:05 2009 Raid Level : raid10

Re: Software RAID10 - which two disks can fail?

2014-04-08 Thread Valerio Vanni
Gary Dale garyd...@velcom.ca ha scritto nel messaggio news:53437300.8020...@velcom.ca IMHO this is a bad setup. Because you are reading and writing to multiple disks at at time, you may have some speed-up, but you only get half the total space. And you are vulnerable to some two-disk

Re: Software RAID10 - which two disks can fail?

2014-04-08 Thread Gary Dale
On 08/04/14 08:54 AM, Valerio Vanni wrote: Gary Dale garyd...@velcom.ca ha scritto nel messaggio news:53437300.8020...@velcom.ca IMHO this is a bad setup. Because you are reading and writing to multiple disks at at time, you may have some speed-up, but you only get half the total space. And

Software RAID10 - which two disks can fail?

2014-04-07 Thread Rafał Radecki
Hi All. I have a server which uses RAID10 made of 4 partitions for / and boots from it. It looks like so: mdadm -D /dev/md1 /dev/md1: Version : 00.90 Creation Time : Mon Apr 27 09:25:05 2009 Raid Level : raid10 Array Size : 973827968 (928.71 GiB 997.20 GB) Used Dev Size :

Re: Software RAID10 - which two disks can fail?

2014-04-07 Thread Gary Dale
On 07/04/14 03:48 PM, Rafał Radecki wrote: Hi All. I have a server which uses RAID10 made of 4 partitions for / and boots from it. It looks like so: mdadm -D /dev/md1 /dev/md1: Version : 00.90 Creation Time : Mon Apr 27 09:25:05 2009 Raid Level : raid10 Array Size : 973827968 (928.71 GiB