Ritesh Agrawal wrote:
Hi Group , I need your suggestions in configuring RAID - 5 for file servers , firstly i want to know which tools(open source s/w) should be used for managing RAID with less complexity,more flexiblity and support for resizing data volume(without losing of data integrity), Currently i am using 'mdm' and 'raidtools' but these don't solve my purpose. What do you think about 'EVMS's' functionalities and flexiblities ? which filesystem is more stable and easy to recover in case of disk failure (ext3,JFS,ReiserFS,Open GFS)?
Here's what we do for a client:
-> SATA "hardware" RAID - 1 for protection against media failure -> ext3 filesystem for protection against FS corruption due to unclean stops -> LVM for volume management - to be able to expand/contract partition sizes and add devices to increase space if needed -> rsync on a different partition for backup for protection against accidental deletions -> Tape drive for archiving
Hi Varun , thanks for your so promptly response . Is Reiser FS is better than ext3 FS in terms of less corrupted data due to unclean shutdown and fast recovery ? because some time , ext3 remains still in unstable state after running fsck. so i have to backup all data then reinstallation of linux .however it happens rarely.
Never used Reiser FS.
For ext3, have you seen the various journaling modes - data, ordered & writeback, which let you trade-off between speed and data integrity?
-- Regards, Varun Varma --------------------------------------- Mindframe Software & Services Pvt. Ltd. http://www.mindsw.com ---------------------------------------
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