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mobcdi
Enthusiast
Enthusiast

VDP 5.5 Gsan Degraded

I'm having trouble with my 1TB vdp appliance, the appliance configure status webpage is showing all services are running but when I login to the appliance and run the command  dpnctl status is shows gsan as degraded.

  • I can't get backups to execute manually and they didn't run to schedule overnight.
  • The appliance is showing disk usage around 36% but no backups are listed in the restore tab in vSphere web client.
  • A manual integrity check completed successfully yesterday

I tried stopping/starting the gsan using dpnctl stop gsan, dpnctl start gsan but it returned to degraded fairly soon afterwards

I tried changing hte backup window so its not in maintenance mode to see if that would let me execute manual vm backups but that didn't work

I've also increased the RAM on the appliance from the default 4GB to 6GB

Can anyone tell me if gsan degraded is user fixable or if not will the appliance correct it itself and if so how long (minutes, a few hours, 0.5 days, more)

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snekkalapudi
VMware Employee
VMware Employee

GSAN degraded means the appliance is in read-only state.

Run status.dpn on the appliance and see the capacity reported

Also do you have enough maintenance window to complete the garbage collection ? Try give it more time today to clear up the garbage and see if it fixes your issue.

Also delete some older backups unless you really need them.

-Suresh
mobcdi
Enthusiast
Enthusiast

Thu Nov 14 12:26:24 GMT 2013  [VDPAppliance] Thu Nov 14 12:26:24 2013 UTC (Initialized Mon Oct 14 11:47:04 2013 UTC)

Node   IP Address     Version   State   Runlevel  Srvr+Root+User Dis Suspend Load UsedMB Errlen  %Full   Percent Full and Stripe Status by Disk

0.0    192.xxx.yyy.zzz 7.0.80-165  ONLINE fullaccess mhpu+0hpu+0000   2 false   0.26 5554  2935374  25.6%  25%(onl:1106) 25%(onl:1103) 25%(onl:1105)

Srvr+Root+User Modes = migrate + hfswriteable + persistwriteable + useraccntwriteable

All reported states=(ONLINE), runlevels=(fullaccess), modes=(mhpu+0hpu+0000)

System-Status: ok

Access-Status: admin

No checkpoint yet

No GC yet

No hfscheck yet

Maintenance windows scheduler capacity profile is active.

  WARNING: Scheduler is WAITING TO START until [removed] [but is step a few hours before backup window

  Next backup window start time: [removed]

  Next maintenance window start time: [removed]

The appliance isn't showing any backups for me to delete even though my retension policies should mean something should have been kept

My maintenance window is 12 hours and its currently in that period but the appliance vCPU,vRAM doesn't seem to be high at the moment like its working on anything

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snekkalapudi
VMware Employee
VMware Employee

Status from my recently deployed appliance for your comparison...

Thu Nov 14 03:45:55 PST 2013  [xxx] Thu Nov 14 11:45:55 2013 UTC (Initialized Tue Nov 12 10:31:33 2013 UTC)

Node   IP Address     Version   State   Runlevel  Srvr+Root+User Dis Suspend Load UsedMB Errlen  %Full   Percent Full and Stripe Status by Disk

0.0  x.x.x.x  y.y.y-y  ONLINE fullaccess mhpu+0hpu+0hpu   3 false   2.33 3805   622753   1.2%   1%(onl:19 )  1%(onl:18 )  1%(onl:18 )

Srvr+Root+User Modes = migrate + hfswriteable + persistwriteable + useraccntwriteable

All reported states=(ONLINE), runlevels=(fullaccess), modes=(mhpu+0hpu+0hpu)

System-Status: ok

Access-Status: full

Last checkpoint: cp.20131113190501 finished Wed Nov 13 11:05:21 2013 after 00m 20s (OK)

Last GC: finished Wed Nov 13 10:01:31 2013 after 00m 06s >> recovered 10.21 MB (OK)

Last hfscheck: finished Wed Nov 13 11:04:49 2013 after 02m 58s >> checked 48 of 48 stripes (OK)

Maintenance windows scheduler capacity profile is active.

  The backup window is currently running.

  Next backup window start time: Thu Nov 14 18:00:00 2013 PST

  Next maintenance window start time: Thu Nov 14 10:00:00 2013 PST

---- I dont see CPU & RAM a problem at all here.

---- All I can say is try your luck restarting the appliance. It doesn't harm as it is graceful and no reverting to previous checkpoint.

-Suresh
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mobcdi
Enthusiast
Enthusiast

I've rebooted a number of times but no success

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Grime121
Contributor
Contributor

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