On 09/10/2012 12:41 PM, Jeff Siddall wrote:
On 09/10/2012 02:52 PM, Todd And Margo Chester wrote:
On 09/10/2012 10:05 AM, Jeff Siddall wrote:
ME software RAID1 is very reliable
Have you had a software RAID failure? What was the alert?
And, what did you have to do to repair it?
Never had a "software" failure. I have had [too] many hardware
failures, and those show up with the standard MD email alerts (example
attached below).
Jeff
----------
This is an automatically generated mail message from mdadm
A DegradedArray event had been detected on md device /dev/md1.
Faithfully yours, etc.
P.S. The /proc/mdstat file currently contains the following:
Personalities : [raid1] [raid6] [raid5] [raid4]
md3 : active raid1 sda5[0]
371727936 blocks [2/1] [U_]
md0 : active raid1 sda1[0]
104320 blocks [2/1] [U_]
md2 : active raid1 sda3[0]
2096384 blocks [2/1] [U_]
md1 : active raid1 sda2[0]
16779776 blocks [2/1] [U_]
unused devices: <none>
Hi Jeff,
Thank you.
I do not understand what I am looking at. All four
entries are RAID1, meaning two drives in the array.
But what two drives go together?
What does the "[U_]" stand for? Up? Should
md1 be [D_] for down?
What does [2/1] stand for?
And, just out of curiosity, is it possible to have
a hot spare with the above arrangement?
-T
