[gpfsug-discuss] Allocation map limits - any way around this?

Oesterlin, Robert Robert.Oesterlin at nuance.com
Tue Jul 10 12:59:18 BST 2018


File system was originally created with 1TB NSDs (4) and I want to move it to one 5TB NSD. Any way around this error?

mmadddisk fs1 -F new.nsd

The following disks of proserv will be formatted on node srv-gpfs06:
    stor1v5tb85: size 5242880 MB
Extending Allocation Map
Disk stor1v5tb85 cannot be added to storage pool Plevel1.
Allocation map cannot accommodate disks larger than 4194555 MB.
Checking Allocation Map for storage pool Plevel1
mmadddisk: tsadddisk failed.
Verifying file system configuration information ...
mmadddisk: Propagating the cluster configuration data to all
  affected nodes.  This is an asynchronous process.
mmadddisk: Command failed. Examine previous error messages to determine cause.


Bob Oesterlin
Sr Principal Storage Engineer, Nuance

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