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managing_linux_software_raid [2008/08/27 10:06]
adam Added articles 		managing_linux_software_raid [2008/09/12 12:07]
adam
Line 19: Line 19:
 Viewing the status of the array (the one shown here is repairing): Viewing the status of the array (the one shown here is repairing):
  
-[root@host ~]# cat /proc/mdstat  +  [root@host ~]# cat /proc/mdstat  
-Personalities : [raid1]  +  Personalities : [raid1]  
-md1 : active raid1 sdc1[2] sdd1[1] +  md1 : active raid1 sdc1[2] sdd1[1] 
-      142327744 blocks [2/1] [_U] +        142327744 blocks [2/1] [_U] 
-      [==========>..........]  recovery = 54.5% (77655168/142327744) finish=65.2min speed=16503K/sec +        [==========>..........]  recovery = 54.5% (77655168/142327744) finish=65.2min speed=16503K/sec 
-md0 : active raid1 sdb1[1] sda1[0] +  md0 : active raid1 sdb1[1] sda1[0] 
-      142327744 blocks [2/2] [UU] +        142327744 blocks [2/2] [UU] 
-       +         
-unused devices: <none>+  unused devices: <none>
  
 Showing status detail for a particular array: Showing status detail for a particular array:
  
-  [root@jet ~]# mdadm --detail /dev/md1 +  [root@host ~]# mdadm --detail /dev/md1 
-/dev/md1: +  /dev/md1: 
-        Version : 00.90.01 +          Version : 00.90.01 
-  Creation Time : Sat Jan 13 08:24:54 2007 +    Creation Time : Sat Jan 13 08:24:54 2007 
-     Raid Level : raid1 +       Raid Level : raid1 
-     Array Size : 142327744 (135.73 GiB 145.74 GB) +       Array Size : 142327744 (135.73 GiB 145.74 GB) 
-    Device Size : 142327744 (135.73 GiB 145.74 GB) +      Device Size : 142327744 (135.73 GiB 145.74 GB) 
-   Raid Devices : 2 +     Raid Devices : 2 
-  Total Devices : 2 +    Total Devices : 2 
-Preferred Minor : 1 +  Preferred Minor : 1 
-    Persistence : Superblock is persistent+      Persistence : Superblock is persistent 
 +   
 +      Update Time : Wed Aug 27 09:10:48 2008 
 +            State : clean, degraded, recovering 
 +   Active Devices : 1 
 +  Working Devices : 2 
 +   Failed Devices : 0 
 +    Spare Devices : 1 
 +   
 +   
 +   Rebuild Status : 55% complete 
 +   
 +      Number   Major   Minor   RaidDevice State 
 +         0       0        0       -1      removed 
 +         1       8       49        1      active sync   /dev/sdd1 
 +         2       8       33        0      spare   /dev/sdc1 
 +             UUID : cb59fcb5:d61a134b:3e799237:ab0c3b4f 
 +           Events : 0.25582871
  
-    Update Time : Wed Aug 27 09:10:48 2008 +View the Detail of a Particular Disk in an Array:
-          State : clean, degraded, recovering +
- Active Devices : 1 +
-Working Devices : 2 +
- Failed Devices : 0 +
-  Spare Devices : 1 +
- +
- +
- Rebuild Status : 55% complete +
- +
-    Number   Major   Minor   RaidDevice State +
-       0       0        0       -1      removed +
-       1       8       49        1      active sync   /dev/sdd1 +
-       2       8       33        0      spare   /dev/sdc1 +
-           UUID : cb59fcb5:d61a134b:3e799237:ab0c3b4f +
-         Events : 0.25582871+
  
 +  [root@host ~]# mdadm --examine /dev/sdd1
 +  /dev/sdd1:
 +            Magic : a92b4efc
 +          Version : 00.90.00
 +             UUID : 4f4ab348:d8fe0303:1a07dcc9:ff9ba005
 +    Creation Time : Mon Sep  8 09:27:41 2008
 +       Raid Level : raid1
 +      Device Size : 142327744 (135.73 GiB 145.74 GB)
 +     Raid Devices : 2
 +    Total Devices : 2
 +  Preferred Minor : 1
 +  
 +      Update Time : Fri Sep 12 12:05:33 2008
 +            State : clean
 +   Active Devices : 2
 +  Working Devices : 2
 +   Failed Devices : 0
 +    Spare Devices : 0
 +         Checksum : 852842d6 - correct
 +           Events : 0.190583
 +  
 +  
 +        Number   Major   Minor   RaidDevice State
 +  this     1       8       49        1      active sync   /dev/sdd1
 +     0     0       8       33        0      active sync   /dev/sdc1
 +     1     1       8       49        1      active sync   /dev/sdd1
  
 ==== Other Articles on Linux Software RAID ==== ==== Other Articles on Linux Software RAID ====
  
-[[http://tldp.org/HOWTO/Software-RAID-HOWTO.html|Linux Software RAID Howto]] +  * [[http://tldp.org/HOWTO/Software-RAID-HOWTO.html|Linux Software RAID Howto]] 
-[[http://www.networknewz.com/2003/0113.html]] +  * [[http://www.networknewz.com/2003/0113.html]] 
-[[http://acd.ucar.edu/~fredrick/linux/fedoraraid/]]+  * [[http://acd.ucar.edu/~fredrick/linux/fedoraraid/]]
managing_linux_software_raid.txt · Last modified: 2016/11/25 22:38 (external edit)

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