HP ML570 Novell NetWare 6 performance tuning guidelines for ProLiant servers - Page 9

tips and tricks, View Memory Config, Manage Server

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Novell NetWare 6 performance tuning guidelines for ProLiant servers tips and tricks Use the following tips to improve the performance of your disk subsystems: • If the number of dirty buffers remains constant and the number of current disk requests remains high, the disk subsystem might be a bottleneck. Consider installing a faster disk drive and a controller. • If the number of dirty buffers is frequently above 50% of total cache buffers, add more memory for cache. • Monitor the swap activities (listed in table 5) taking place. To view the swap file, type the following console command: swap table 5. virtual memory swap file (sizes in millions of bytes) volume name: SYS swap file size: 22 used: 0 min: 2 max: 4116 Summary total swap file size: 22 used: 0 min: 2 max: 4116 volume size: 4116 free space: 2889 min free: 5 total volume size: 4116 free space: 2889 min free: 5 • If necessary, create a swap file (one per volume) by typing the following console command: SWAP ADD SYS1 MIN=4, MAX=8, MIN FREE=3000 MIN = minimum swap file size (default = 2) MAX = maximum swap file (default = free volume space) MIN FREE = minimum free space to be preserved on a volume outside the swap file (default = 5). • To remove a swap partition, type the following console command: SWAP DEL SYS1 The Swap file is a storage location for data moved to the disk by the virtual memory manager. To monitor Swap file activities using the NRM tool, follow these steps: 1. Open the NRM and select View Memory Config listed under the Manage Server category. Note: For detailed instructions on how to invoke the NRM, refer to the NetWare Remote Manager section of this document. 9

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Novell NetWare 6 performance tuning guidelines for ProLiant servers
tips and tricks
Use the following tips to improve the performance of your disk subsystems:
•
If the number of dirty buffers remains constant and the number of current disk
requests remains high, the disk subsystem might be a bottleneck. Consider installing a
faster disk drive and a controller.
•
If the number of dirty buffers is frequently above 50% of total cache buffers, add
more memory for cache.
•
Monitor the swap activities (listed in table 5) taking place. To view the swap file,
type the following console command:
swap
table 5. virtual memory swap file (sizes in millions of bytes)
volume name: SYS
swap file
volume
size: 22
size: 4116
used: 0
free space: 2889
min: 2
min free: 5
max: 4116
Summary
total swap file
total volume
size: 22
size: 4116
used: 0
free space: 2889
min: 2
min free: 5
max: 4116
•
If necessary, create a swap file (one per volume) by typing the following console
command:
SWAP ADD SYS1 MIN=4, MAX=8, MIN FREE=3000
MIN = minimum swap file size (default = 2)
MAX = maximum swap file (default = free volume space)
MIN FREE = minimum free space to be preserved on a volume outside the swap file
(default = 5).
•
To remove a swap partition, type the following console command:
SWAP DEL SYS1
The Swap file is a storage location for data moved to the disk by the virtual memory
manager. To monitor Swap file activities using the NRM tool, follow these steps:
1. Open the NRM and select
View Memory Config
listed under the
Manage Server
category.
Note: For detailed instructions on how to invoke the NRM, refer to the NetWare
Remote Manager section of this document.
9