Unix komutları -2

Memory and Swap commands

	Solaris	Red Hat	Ubuntu/Debian	HP	AIX
Memory	/usr/platform/`uname -i`/sbin/prtdiag -v prtconf | grep -i mem	cat /proc/meminfo (detailed) free -om	cat /proc/meminfo (detailed) free -om	dmesg | grep -i physical /usr/sam/lbin/getmem /opt/ignite/bin/print_manifest cat /var/opt/ignite/local/manifest/manifest.info	prtconf -m  prtconf |grep -i memory lsattr -El sys0 -a realmem bootinfo -r
page size (memory)	/usr/bin/pagesize	/usr/bin/getconf -a| egrep -i 'pagesize|page_size'	/usr/bin/getconf -a| egrep -i 'pagesize|page_size'	dmesg |grep -i physical	pagesize pagesize -a (display all supported pagesizes)
display swap	swap -l swap -s	cat /proc/swaps (detailed) swapon -s	cat /proc/swaps (detailed) swapon -s	swapinfo (displayed in KB) swapinfo -m (display in Mb) swapinfo -tm (total / Mb)	lsps -a (detailed)  lsps -s
adding swap	mkfile 5m /var/swapfile  swap -a /var/swapfile  update /etc/vfstab	device: create partition with fdisk (type 82) file(create 50MB swap file): dd if=/dev/zero of=/var/swapfile bs=1024 count=50000 mkswap <device>|<file> swapon <device>|<file> update /etc/fstab	device: create partition with fdisk (type 82) file(create 50MB swap file): dd if=/dev/zero of=/var/swapfile bs=1024 count=50000 mkswap <device>|<file> swapon <device>|<file> update /etc/fstab	Create logical volume or filesystem swapon <device> | -f <logical device> swapon -p 3 <device> | -f <logical device> update /etc/fstab Note: -p = priority swap number . The nswapdevtunable system parameter controls the maximum number of swap devices.	mkps -a -s 4 -n <volume group> # change the attributes  chps -a n paging00 (don't use after restart) # change the logical volume attributes (name in this case) chlv -n <new name> <old old> (chang page space name)  Note: -a reconfigure paging space after restart -s size of the page space (logical partitions) -n activiates the paging space (use swapoff to deactivate) also see /etc/swapspaces file
removing swap	update /etc/vfstab swap -d	swapoff <device>|<file> Remove device or file as normal	swapoff <device>|<file> Remove device or file as normal	remove entry from /etc/fstab reboot	swapoff /dev/paging00 rmps paging00  Note: paging space must be deactiviated before removing