Manipulating swap space on a running Solaris system - Revision history

Ppapa at 00:58, 17 May 2011

2011-05-17T00:58:49Z

← Older revision		Revision as of 00:58, 17 May 2011
Line 62:		Line 62:
	This will of course change the size of swap to 4Gb. On reboot it will become available.		This will of course change the size of swap to 4Gb. On reboot it will become available.

	Do get rid of the extra swap space you've create:		To get rid of the extra swap space you've create:

	zfs destroy rpool/swap2		zfs destroy rpool/swap2

Ppapa: /* Adding Swap space to a system with ZFS root pool */

2011-03-17T06:00:11Z

Adding Swap space to a system with ZFS root pool

← Older revision		Revision as of 06:00, 17 March 2011
Line 61:		Line 61:

	This will of course change the size of swap to 4Gb. On reboot it will become available.		This will of course change the size of swap to 4Gb. On reboot it will become available.

			Do get rid of the extra swap space you've create:

			zfs destroy rpool/swap2

Ppapa: /* Adding Swap space to a system with ZFS root pool */

2011-03-16T02:18:37Z

Adding Swap space to a system with ZFS root pool

← Older revision		Revision as of 02:18, 16 March 2011
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	As per usual the added swap space will disappear after a reboot, but you'll have to manually delete the new ZFS pool you've created.		As per usual the added swap space will disappear after a reboot, but you'll have to manually delete the new ZFS pool you've created.

			If you want to make a permanent change to the size of swap, you can do the following:

			zfs set volsize=4G rpool/swap

			This will of course change the size of swap to 4Gb. On reboot it will become available.

Ppapa: /* Adding Swap space to a system with ZFS root pool */

2011-03-16T02:14:05Z

Adding Swap space to a system with ZFS root pool

← Older revision		Revision as of 02:14, 16 March 2011
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	swap -a /dev/zvol/dsk/rpool/swap2		swap -a /dev/zvol/dsk/rpool/swap2

	As per usual it will disappear after a reboot.		As per usual the added swap space will disappear after a reboot, but you'll have to manually delete the new ZFS pool you've created.

Ppapa at 02:13, 16 March 2011

2011-03-16T02:13:13Z

@@ Line 1: / Line 1: @@
 == Listing swap files in use ==
@@ Line 33: / Line 32: @@
     /dev/md/dsk/d10     85,10     16 8389632 8389632
     /export/tempfile      -       16 6291440 6291440
 == Delete a swap file ==
@@ Line 39: / Line 39: @@
    swap -d /export/tempfile

Ppapa: /* Adding swap space */

2010-11-26T04:24:29Z

Adding swap space

← Older revision		Revision as of 04:24, 26 November 2010
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	swap -l		swap -l

	swapfile dev swaplo blocks free		swapfile dev swaplo blocks free
	/dev/md/dsk/d10 85,10 16 8389632 8389632		/dev/md/dsk/d10 85,10 16 8389632 8389632

Ppapa: /* Adding swap space */

2010-11-26T04:24:10Z

Adding swap space

← Older revision		Revision as of 04:24, 26 November 2010
Line 29:		Line 29:

	swap -l		swap -l
	swapfile		swapfile dev swaplo blocks free
	dev swaplo blocks free
	/dev/md/dsk/d10 85,10 16 8389632 8389632		/dev/md/dsk/d10 85,10 16 8389632 8389632
	/export/tempfile - 16 6291440 6291440		/export/tempfile - 16 6291440 6291440

Ppapa: /* Adding swap space */

2010-11-26T04:23:36Z

Adding swap space

← Older revision		Revision as of 04:23, 26 November 2010
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	then check it worked with		then check it worked with

	swap -~~lswapfile~~		swap -l
			swapfile
	dev swaplo blocks free		dev swaplo blocks free
	/dev/md/dsk/d10 85,10 16 8389632 8389632		/dev/md/dsk/d10 85,10 16 8389632 8389632

Ppapa: Created page with " == Listing swap files in use == The following command will list all active swap files: swap -l with output looking like this: swapfile dev swaplo blocks ..."

2010-11-26T04:23:13Z

Created page with " == Listing swap files in use == The following command will list all active swap files: swap -l with output looking like this: swapfile dev swaplo blocks ..."

New page

== Listing swap files in use ==

The following command will list all active swap files:

swap -l

with output looking like this:

swapfile dev swaplo blocks free
/dev/md/dsk/d10 85,10 16 8389632 8389632

== Adding swap space ==

So you need more swap temporarily. Here's how:

1. Make a file to add to swap

mkfile 2g /export/tempfile

This will crate a 2Gb file.

2. Add the file to the swap pool

swap -a /export/tempfile

then check it worked with

swap -lswapfile
dev swaplo blocks free
/dev/md/dsk/d10 85,10 16 8389632 8389632
/export/tempfile - 16 6291440 6291440

== Delete a swap file ==

Finished with your temporary swap file. Delete it:

swap -d /export/tempfile