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04-02-2007 05:23 PM
04-02-2007 05:23 PM
Swap limit
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04-02-2007 05:46 PM
04-02-2007 05:46 PM
Re: Swap limit
But let's take a RedHat document (ES4):
https://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/x8664-multi-install-guide/s1-diskpartitioning.html#S2-DISKPARTRECOMMEND
32 x 2GB = 64GB.
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04-02-2007 05:50 PM
04-02-2007 05:50 PM
Re: Swap limit
RHEL5 appears to have a multi-TB swap limit.. so, fun.. ;)
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04-02-2007 07:42 PM
04-02-2007 07:42 PM
Re: Swap limit
In Red Hat Enterprise Linux 2.1 there was a limitation on the partition size of 2GB for each swap space. This was due to the mkswap command not supporting creation of a swap partition larger than 2GB. If the system requires more than 2GB of swap space, work around this limitation by creating multiple swap partitions.
RHEL3 and above, the mkswap command allows the creation of a swap partition of a larger size than 2GB.RHEL 2.1 supports upto 32 swap partitions, each can be a maximum size of 2GB. Maximum total swap size is 64GB.
RHEL3 and higher supports larger swap partitions, each can be of maximum size set by the file size limit and the block device limit for swap partitions on that platform. Red Hat Enterprise Linux 3 has a 1TB limitation as maximum size of block devices, so it's 1TB.
While larger swap partitions are permitted, one large swap partition could affect system performance. For better performance it is recommended to split swap space to multiple discs. Separating swap partitions to different disk could reduce the load on a single disk.
Let me know if any details req...
Regds,
palani.
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04-03-2007 06:59 PM
04-03-2007 06:59 PM
Re: Swap limit
A good strategy is to have even sized swap's on each disk, and try where possible to put them on the drives with the least IO. This not only improves performance, but can also increase system resilliance.
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04-09-2007 03:58 AM
04-09-2007 03:58 AM
Re: Swap limit
http://www.redhat.com/magazine/017mar06/departments/tips_tricks/
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04-10-2007 12:14 PM
04-10-2007 12:14 PM
Re: Swap limit
"Red Hat is working to update this information in the installation guide."
No wonder it's hard to get a straight answer out of their documentation :)
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12-17-2008 09:53 PM
12-17-2008 09:53 PM
Re: Swap limit
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