HP Hitachi Dynamic Link Manager Software User Manual
Page 87
3. Creating an HDLM Environment
65
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