JFS Installation or Conversion for Boosting Performance - Revision history

Davy gravy: /* Why & why not? */

Davy gravy — Mon, 18 Jun 2007 01:46:46 GMT

Why & why not?

← Older revision		Revision as of 01:46, 18 June 2007
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	*not supported in Windows or OS X,		*not supported in Windows or OS X,
	*JFS partitions do not support "shrink", and		*JFS partitions do not support "shrink", and
-	*currently JFS is supported in the 2.4.33.3_v3 firmimg.bin when booted in ~~both~~ hdrootfs mode and ~~EM mode~~, but the jfsutils are not yet available in EM mode (we are hopeful for addition of jfsutils to the RAM disk in the near future - they up take about 1250kB).	+	*currently JFS is supported in the 2.4.33.3_v3 firmimg.bin when booted in hdrootfs mode and with one of our 2.6 kernels, but the jfsutils are not yet available in EM mode (we are hopeful for addition of jfsutils to the RAM disk in the near future - they up take about 1250kB).

	==What does this mean for me?==		==What does this mean for me?==

77.128.152.208 — Sun, 29 Apr 2007 14:26:22 GMT

Again reverted to remove spamm from 218.226.224.85

218.226.224.85 — Sun, 29 Apr 2007 14:09:50 GMT

Kuroguy — Tue, 10 Apr 2007 21:05:21 GMT

Reverted edits by 200.238.102.162 (200.238.102.162); changed back to last version by Davy gravy

200.238.102.162 — Tue, 10 Apr 2007 18:09:46 GMT

Davy gravy — Tue, 06 Feb 2007 14:45:34 GMT

In FreeLink

← Older revision		Revision as of 14:45, 6 February 2007
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	===In FreeLink===		===In FreeLink===
	In either stable or testing, get your packages and install them:		In either stable or testing, get your packages and install them:
-	apt-get install ~~mod~~-init-tools jfsutils	+	apt-get install module-init-tools jfsutils

	To test if you are ready to create the filesystem, issue		To test if you are ready to create the filesystem, issue

Davy gravy — Tue, 23 Jan 2007 02:01:38 GMT

Converting an existing partition to JFS w/ convertfs

← Older revision		Revision as of 02:01, 23 January 2007
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	==Converting an existing partition to JFS w/ convertfs==		==Converting an existing partition to JFS w/ convertfs==
-	Note that this method doesn't check for bad blocks during conversion. It does work, seems generally safe, and has been tested somewhat. YMMV, and backup your data.	+	Note that this method doesn't check for data integrity, bad blocks during conversion. It does work, seems generally safe, and has been tested somewhat. YMMV, and backup your data.

	You will need the the mod-init-tools and jfsutils, as shown above. Read this wiki article on [[Using_XFS_instead_of_ext3_%28network_performance_boost%29\| Using XFS instead of Ext3]], and understand that you will be following it for the most part, except that you will have to change all instances of XFS to JFS, and use jfsutils instead of xfsprogs. Basically, use a command like:		You will need the the mod-init-tools and jfsutils, as shown above. Read this wiki article on [[Using_XFS_instead_of_ext3_%28network_performance_boost%29\| Using XFS instead of Ext3]], and understand that you will be following it for the most part, except that you will have to change all instances of XFS to JFS, and use jfsutils instead of xfsprogs. Basically, use a command like:

Davy gravy — Tue, 23 Jan 2007 02:00:34 GMT

← Older revision		Revision as of 02:00, 23 January 2007
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-	{{Articles\|OpenLink \| FreeLink \| Software \| LS1 \| HG \| HS}}	+	{{Articles\|OpenLink \| FreeLink \| Howto \| Hardware\| Software \| LS1 \| HG \| HS}}
	==Background==		==Background==
	[[w:IBM_Journaled_File_System_2_%28JFS2%29 \| IBM's Journaled File System]], or '''JFS''' for short, is an outgrowth of its AIX operating system. JFS, Ext3, XFS and ReiserFS, are the big 4 of journaled file systems, and each has its own characteristics that make it suitable for different users. JFS is very fast, light, and efficient. Nevertheless it performs extremely well under a wide variety of situations, and draws lightly on the CPU on comparison to the others. See the links at the end of this article for benchmarking articles.		[[w:IBM_Journaled_File_System_2_%28JFS2%29 \| IBM's Journaled File System]], or '''JFS''' for short, is an outgrowth of its AIX operating system. JFS, Ext3, XFS and ReiserFS, are the big 4 of journaled file systems, and each has its own characteristics that make it suitable for different users. JFS is very fast, light, and efficient. Nevertheless it performs extremely well under a wide variety of situations, and draws lightly on the CPU on comparison to the others. See the links at the end of this article for benchmarking articles.

Davy gravy — Tue, 23 Jan 2007 00:17:24 GMT

← Older revision		Revision as of 00:17, 23 January 2007
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-	{{Articles\|OpenLink \| FreeLink \| Software \| LS1 \| ~~LS2 \|~~ HG \| HS}}	+	{{Articles\|OpenLink \| FreeLink \| Software \| LS1 \| HG \| HS}}
	==Background==		==Background==
	[[w:IBM_Journaled_File_System_2_%28JFS2%29 \| IBM's Journaled File System]], or '''JFS''' for short, is an outgrowth of its AIX operating system. JFS, Ext3, XFS and ReiserFS, are the big 4 of journaled file systems, and each has its own characteristics that make it suitable for different users. JFS is very fast, light, and efficient. Nevertheless it performs extremely well under a wide variety of situations, and draws lightly on the CPU on comparison to the others. See the links at the end of this article for benchmarking articles.		[[w:IBM_Journaled_File_System_2_%28JFS2%29 \| IBM's Journaled File System]], or '''JFS''' for short, is an outgrowth of its AIX operating system. JFS, Ext3, XFS and ReiserFS, are the big 4 of journaled file systems, and each has its own characteristics that make it suitable for different users. JFS is very fast, light, and efficient. Nevertheless it performs extremely well under a wide variety of situations, and draws lightly on the CPU on comparison to the others. See the links at the end of this article for benchmarking articles.

Davy gravy — Tue, 23 Jan 2007 00:13:32 GMT

Creating a JFS Partition from Scratch

← Older revision		Revision as of 00:13, 23 January 2007
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	==Creating a JFS Partition from Scratch==		==Creating a JFS Partition from Scratch==
-	This is a preferred method, but ~~it is~~ data-~~destructive~~. Make sure you backup any data on this partition before proceeding.	+	This is a preferred method, but this method does not preserve data - all data on such a partition will be lost during the filesystem creation process. Make sure you backup any data on this partition before proceeding.
-	*0. Unmount the partition, if necessary. You can see what you have currently mounted by issuing a	+
		+	0. Unmount the partition, if necessary. You can see what you have currently mounted by issuing a
	df -Th		df -Th
	and you may see something like this:		and you may see something like this: