Manipulating swap space on a running Solaris system - Revision history

Ppapa at 00:58, 17 May 2011

2011-05-17T00:58:49Z

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

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

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

Ppapa at 02:13, 16 March 2011

2011-03-16T02:13:13Z

Ppapa: /* Adding swap space */

2010-11-26T04:24:29Z

‎Adding swap space

Ppapa: /* Adding swap space */

2010-11-26T04:24:10Z

‎Adding swap space

Ppapa: /* Adding swap space */

2010-11-26T04:23:36Z

‎Adding swap space

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

@@ Line 62: / Line 62: @@
 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

← 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

← Older revision		Revision as of 02:18, 16 March 2011
Line 55:		Line 55:

	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.

← Older revision		Revision as of 02:14, 16 March 2011
Line 54:		Line 54:
	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.

@@ 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

@@ Line 29: / Line 29: @@
     swap -l
     swapfile             dev  swaplo blocks   free
     /dev/md/dsk/d10     85,10     16 8389632 8389632

@@ Line 28: / Line 28: @@
 then check it worked with
-    swap -lswapfile
+    swap -l
     dev  swaplo blocks   free
     /dev/md/dsk/d10     85,10     16 8389632 8389632