AnsweredAssumed Answered

Disk failure on a disk that doesn't exist

Question asked by cleonn on Mar 22, 2013
Latest reply on Apr 4, 2013 by cleonn

Now, this is a "fun" one! After restarting the whole MapR-cluster (done by the procedure stated in the docs) I get a Disk Failure Alert on one of the nodes.

 

In the /opt/mapr/logs/faileddisk.log I see the following

 

############################ Disk Failure Report ###########################

Disk                :    _MissingDisk9
Failure Reason      :    No such device
Time of Failure     :    Fri Mar 22 15:39:19 CET 2013
Resolution          :


Running:

 

/opt/mapr/server/mrconfig disk list

 

Gives:

 

ListDisks resp: status 0 count=9 
ListDisks /dev/sdb 
 DG 0: Single SingleDisk5 Online
 DG 1: Raid0 Stripe12 Online
 DG 2: Concat Concat13 Online
 SP 0: name SP1, Online, size 8219846 MB, free 2526882 MB, path /dev/sdb
ListDisks /dev/sdg 
 DG 0: Single SingleDisk5 Online
 DG 1: Raid0 Stripe72 Online
 DG 2: Concat Concat73 Online
 SP 0: name SP7, Online, size 5481261 MB, free 2807345 MB, path /dev/sdg
ListDisks /dev/sdi 
 DG 0: Single SingleDisk5 Online
 DG 1: Raid0 Stripe92 Online
 DG 2: Concat Concat93 Online
 SP 0: name SP9, Online, size 5481261 MB, free 1732217 MB, path /dev/sdi
ListDisks /dev/sde 
 DG 0: Single SingleDisk5 Online
 DG 1: Raid0 Stripe42 Online
 DG 2: Concat Concat43 Online
 SP 0: name SP4, Online, size 5481261 MB, free 1579726 MB, path /dev/sde
ListDisks /dev/sdc 
 DG 0: Single SingleDisk5 Online
 DG 1: Raid0 Stripe12 Online
 SP 0: name SP1, Online, size 8219846 MB, free 2526882 MB, path /dev/sdb
ListDisks /dev/sdd 
 DG 0: Single SingleDisk5 Online
 DG 1: Raid0 Stripe12 Online
 SP 0: name SP1, Online, size 8219846 MB, free 2526882 MB, path /dev/sdb
ListDisks /dev/sdh 
 DG 0: Single SingleDisk5 Online
 DG 1: Raid0 Stripe72 Online
 SP 0: name SP7, Online, size 5481261 MB, free 2807345 MB, path /dev/sdg
ListDisks /dev/sdj 
 DG 0: Single SingleDisk5 Online
 DG 1: Raid0 Stripe92 Online
 SP 0: name SP9, Online, size 5481261 MB, free 1732217 MB, path /dev/sdi
ListDisks /dev/sdf 
 DG 0: Single SingleDisk5 Online
 DG 1: Raid0 Stripe42 Online
 SP 0: name SP4, Online, size 5481261 MB, free 1579726 MB, path /dev/sde

 

/opt/mapr/logs/_MissingDisk9.failed.info is empty.

 

Running:

 

maprcli disk remove -host 127.0.0.1 -disks /dev/_MissingDisk9

 

gives:

 

ERROR (2) -  Failed operation for disk /dev/_MissingDisk9, No such file or directory

 

How do I get rid of this one?

Outcomes