Hitachi Dynamic Link Manager Software Users Guide for AIX (6.6) (T5208-96010, April 2011)

3. Creating an HDLM Environment
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usePersistentReserve option to no in the GPFS cluster configuration
information.
#4
VxVM is not supported.
#5
PowerVM Live Partition Mobility is supported only in an environment that uses
the HDLM device as a virtual SCSI device. However, PowerVM Live Partition
Mobility is not supported if the HDLM device used is an NPIV-based virtual
HBA.
#6
Sometimes, if JFS2 is being used and a crash (
halt -q) fails over a node, the
resource to be mounted on the failover-destination node is not properly mounted.
This problem occurs regardless of whether HDLM is installed.
#7
Apply fix pack 3.3.0.3 or later.
3.1.4 Memory and Disk Capacity Requirements
This subsection explains the memory and disk capacity requirements.
(1) Memory Requirements
Table 3-4: Memory Requirements for the Host shows the memory requirements for
the host.
Table 3-4: Memory Requirements for the Host
(2) Disk Capacity Requirements
Table 3-5: Disk Capacity Requirements for the Host lists the disk capacity
requirements for the host.
Table 3-5: Disk Capacity Requirements for the Host
OS Required memory
AIX 5000 KB + 0.256 KB x number-of-LUs + 1.28 KB x number-of-paths
Directory Disk capacity requirement
/etc 150 KB
/opt 2 MB
/usr 220 MB