It depends on what you are going to use the filesystem for. For filesystems that are fairly static like /usr the overhead of journaling is a waste. For filesystems like /tmp that are very active, but don't have any data that needs to be saved across reboots, journaling is also a waste. For filesystems that have important data you should use a journaling filesystem, and make regular backups. Note that journaling will not save you if a disk fails.
As to which is better, this is mostly a matter of opinion. Reiser seems to use more CPU then EXT3, so it may not be a good solution on zSeries. On the other hand Reiser allocates space better then EXT3 (or EXT2) if you have many small files, ware a small file is one that is smaller then half the filesystem block size. -----Original Message----- From: Seader, Cameron [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 09, 2004 7:11 AM To: [EMAIL PROTECTED] Subject: Filesystems ?? Greetings, I have been taking notice of the filesystems that many of us have been useing for Linux on s/390 and i want to ask the Question which performs better? The Filesystems in Question are ReiserFS, EXT2, EXT3. These are a few of the filesystems that i have noticed that seem to be popular. It seems that they all have the same block size for each. ReiserFS and EXT3 have indexing and Journaling. Does anyone know of the performance benefits for each of these, and does it depend on what you are running? i.e. Database, Apache. What are the reasons for useing ReiserFS as opposed to EXT3? I am running our guests on a Shark useing mod-3's and mod-9's, does ReiserFS perform better on DASD. Does anyone have any idea on this reasoning? Thanks in advance, Cameron Seader This transmission may contain information that is privileged, confidential and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. A1. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
