Number of lus and paths that are supported in hdlm – HP Hitachi Dynamic Link Manager Software User Manual

Page 157

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The size of each log file (dlmwebagent[1-N].log) is 9900 KB

(approximately 10 MB). The size of the log files is calculated as

approximately 20 MB because two log files are created by default.
You can create a maximum of 16 log files depending on the setting in the
dlmwebagent.properties file. If you create 16 log files, the size of the

log files will be approximately 160 MB.

#6

The size of the log files for the dlmcfgmgr utility.
This size differs depending on the settings for the size of the log files for

the dlmcfgmgr utility (maximum size: 1954 MB (approximately 2 GB)).
v is obtained by using the following formula:
v = (w x 2) / 1024 [MB]
Where w is the size of the log files for the dlmcfgmgr utility (unit: KB,

default value: 1024).
The result is rounded up to MB.

#7

This is an approximate value when the default values are used for the

HDLM functions and when the number of paths is 256.
For details on the values of the HDLM functions, see

Table 3-71 The

Recommended and Default Values of Each Function on page 3-215

in

Setting Up the HDLM Functions on page 3-215

.

#8

The size of the configuration definition file.
y is obtained by using the following formula:
y = (2500 bytes x number-of-paths x 4) / 1024 / 1024 [MB]
The result is rounded up to MB.

#9

The size of the file that defines non-HDLM-managed disks.
z is obtained by using the following formula:
z = (20 bytes x number-of-non-HDLM-managed-disks x 4) / 1024 / 1024

[MB]
The result is rounded up to MB.

Number of LUs and Paths That Are Supported in HDLM

The following table lists the number of LUs and paths that are supported by

HDLM.

Table 3-58 Number of LUs and Paths That Are Supported by HDLM

Target

Supported number

Number of paths per

LU

Red Hat Enterprise Linux
Oracle Enterprise Linux 4
Oracle Enterprise Linux 5

1 to 64

Creating an HDLM Environment

3-85

Hitachi Dynamic Link Manager User Guide for Linux

®

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