IJ54045: A NEW TSDBFS OPTION ADDED TO RESET 'THIN INODE'.

APAR status

• Closed as program error.

Error description

• To help controlling the issues (refer to D.341360, D.343470, and
  D.343471) with file systems created from SSS6K and FCM4, a new
  option 'thininode' is added to the tsdbfs command. This option
  will be used to reset 'thin inode'.
  

Local fix

Problem summary

• To help controlling the issues (refer to D.341360, D.343470, and
  D.343471) with file systems created from SSS6K and FCM4, a new
  option 'thininode' is added to the tsdbfs command. This option
  will be used to reset 'thin inode'.
  

Problem conclusion

• Benefits of the solution:
  With the new option, we can avoid accessing the 'thin inode'
  preventing assert/crash from the daemon on the file system
  created from SSS6K and FCM4 drives.
  
  Work Around:
  None
  
  Problem trigger:
  Refer to D.343470 and D.343471 on the issues/symptoms and how to
  trigger.
  
  Symptom:
  With the command, 'thin inode' will be reset to the value as
  appeared in the tsdbfs command.[root@c145f11san04b sju]# mmfsadm
  dump stripe | egrep "State of|thin inode"State of StripeGroup
  "test" at 0x18042A6A5B0, uid 7491A8C0:67D9B824, local id
  1:      
  
  0: name 'system' Valid nDisks 32 nInUse 32 id 0 poolFlags 2
  thin inode 41 nBlocks 519      
  
  1: name 'data' Valid nDisks 16 nInUse 16 id 65537 poolFlags 2
  thin inode 42 nBlocks 526      
  
  2: name 'flash' Valid nDisks 8 nInUse 8 id 65538 poolFlags 2
  thin inode 43 nBlocks 526
  [root@c145f11san04b sju]# tsdbfs test patch desc thininode 0 -1
  [root@c145f11san04b sju]# tsdbfs test patch desc thininode 1 -1
  [root@c145f11san04b sju]# tsdbfs test patch desc thininode 2 -1
  [root@c145f11san04b sju]# mmfsadm dump stripe | egrep "State
  of|thin inode"
  State of StripeGroup "test" at 0x18042A6A5B0, uid
  7491A8C0:67D9B824, local id 1:      
  
  0: name 'system' Valid nDisks 32 nInUse 32 id 0 poolFlags 2
  thin inode -1 nBlocks 519      
  
  1: name 'data' Valid nDisks 16 nInUse 16 id 65537 poolFlags 2
  thin inode -1 nBlocks 526      
  
  2: name 'flash' Valid nDisks 8 nInUse 8 id 65538 poolFlags 2
  thin inode -1 nBlocks 526
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  SPEC SCALE STD

• Fixed component ID

  5737F33AP

Applicable component levels