Aix5.3 查看某块磁盘大小
$ lscfg -vl hdisk0
hdisk0 U78A0.001.DNWH2A8-P2-D4 SAS Disk Drive (146800 MB)
$ lsattr -El hdisk0
PCM PCM/friend/scsiscsd Path Control Module False
algorithm fail_over Algorithm True
dist_err_pcnt 0 Distributed Error Percentage True
dist_tw_width 50 Distributed Error Sample Time True
hcheck_interval 0 Health Check Interval True
hcheck_mode nonactive Health Check Mode True
max_transfer 0x100000 Maximum TRANSFER Size True
pvid 00c1e7a49db09a970000000000000000 Physical volume identifier False
queue_depth 16 Queue DEPTH False
reserve_policy no_reserve Reserve Policy True
size_in_mb 146800 Size in Megabytes False
unique_id 2E1135000CCA00D77E5680FHUS153014VLS30003IBMsas Unique device identifier False
ww_id 5000cca00d77e568 World Wide Identifier False
修改系统参数:
# smit 或者 smit system 或者 #chgsys
System Environments
Change / Show Characteristics of Operating System
[TOP] [Entry Fields]
System ID 0X800006DC6E300000
Partition ID 0X800006DC6E300002
Maximum number of PROCESSES allowed per user [16384] +#
Maximum number of pages in block I/O BUFFER CACHE [20] +#
Maximum Kbytes of real memory allowed for MBUFS [0] +#
Automatically REBOOT OS after a crash true +
Continuously maintain DISK I/O history false +
HIGH water mark for pending write I/Os per file [8193] +#
LOW water mark for pending write I/Os per file [4096] +#
Amount of usable physical memory in Kbytes 2097152
State of system keylock at boot time normal
Enable full CORE dump false +
Use pre-430 style CORE dump false +
Pre-520 tuning compatibility mode disable +
Maximum login name length at boot time [9] +#
Stack Execution Disable (SED) Mode select +
Enhanced RBAC Mode true +
NFS4 ACL Compatibility Mode secure +
ARG/ENV list size in 4K byte blocks [256] +#
CPU Guard enable +
Processor capacity increment 0.01