Solaris 10 swap device and filesystem Post: 302977693

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Operating Systems Solaris Solaris 10 swap device and filesystem Post 302977693 by javanoob on Thursday 21st of July 2016 07:50:34 AM

07-21-2016

Registered User

Quote:

Originally Posted by MadeInGermany

Ensure that the 100GB is not mounted. Then it can be trashed, you can add it to swap.
(If it's a partition on a physical disk on Sparc, it might give an error - in this case you must change the "wm" flag to "wu" in "format"s partition menu, in order to declare it unmountable. It's a good habit anyway.)
With used swap I mean the utilized swap, (blocks - free) in swap -l

Hi MadeInGermany,

Yeap. I am using SPARC and i managed to add the UFS partition as swap. It did not prompt me any error (but i am not sure if it is because the swap is not used yet)

I have also change the partition flag from wm to wu.

Regards,
Noob

---------- Post updated at 06:50 AM ---------- Previous update was at 06:47 AM ----------

Quote:

Originally Posted by jlliagre

Well, if your 100Gb partition is empty, you can either create a swapfile in it, or trash the filesystem on it and use the partition as swap. The former method (swapfile) would be simpler to implement.

You should never configure a partition containing a file system as a raw swap device, especially if it is mounted at the same time. In any case, any actual paging operation will corrupt the file system.

Hi Jilliagre,

Thanks. Sorry for my poor english, but what do you mean by "trash the filesystem on it" ?
Do you mean to mount the 100GB partition as swap and ignore the fact of the UFS filesystem on it ?
(p.s. the 100GB is already umounted from its original mountpoint)

Regards,
Noob

javanoob

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dtc_setup_vps_disk

dtc_setup_vps_disks(8)					      System Manager's Manual					    dtc_setup_vps_disks(8)

NAME

       dtc_setup_disk - setup LVM disks for using it as a VM

SYNOPSIS

       dtc_setup_vps_disk.sh VPS_NUMBER HDD_SIZE SWAP_SIZE [ lvm|loopback ]

DESCRIPTION

       dtc_setup_vps_disk.sh This shell script is a part of the dtc-xen package that is to be used by the dtc panel to manage a Xen VPS server.

       This script is used to create partitions to be used by a VPS later on.  It will create a normal partition that will be used as a root disk,
       and a swap partition.

       dtc_setup_disk is to be used by the dtc-xen SOAP server, but can also be used as a standalone userland tool.

       If the partition(s) exists, then this script will delete it/them first.

OPTIONS

       VPS_NUMBER has to be a number between 01 and 19. Let's say the number is 16, and that dtc-xen is configured to use the volume group  called
       lvm1, then this script will create /dev/lvm1/xen16 and /dev/lvm1/xen16swap.

       HDD_SIZE Size in MB of the VPS partition to create.

       SWAP_SIZE  Size in MB of the VPS swap partition to create. If the dtc-xen SOAP server is used to create the VPS, then it will create a swap
       partition of the exact same size as the memory.

       IMAGE_TYPE This parameter can have 2 values: either lvm or loopback. If ommited, then lvm is used. If lvm is used, then	this  script  will
       create a partition using lvmcreate, otherwise it will create an image file. Both will later be used for the VPS.

EXAMPLE

       dtc_setup_vps_disk 04 15360 256 lvm

       This will create 2 LVM partition to be used by the VPS named xen04, the first one being a root partition of 15 GB, and the second one being
       a swap partition of 256 MB.

VERSION

       This documentation describes dtc_setup_vps_disk version 0.3.15.	See http://www.gplhost.com/software-dtc-xen.html for updates.

SEE ALSO

       dtc_reinstall_os(8), dtc_kill_vps_disk(8)

															    dtc_setup_vps_disks(8)