Siegfried Löffler;566999 Wrote: > Actually the reason why I first chose ext2 was because I thought it > would > reduce read/write (so for USB FLASH drives it would have been a better > choice to reduce the wear) - but I had not thought about the advantage > of > journalling for protecting the file system. I must admit I dont really > know > how ext3 works -- Is the whole journalling and restoring is automatic > or if > you need tools to restore?
You need tools, but I can't imagine a system not supplying them as mandatory these days... ext3 isn't all that new. (ie, there is a special version of fsck for ext3 (called, appropriately enough, fsck.ext3 -- this is part of the debian e2fsprogs these days, so should be included already .. an option in mke2fs sets the journal on, so unless you have an ancient mke2fs, it should be ready to go...) ext3 will save you if your computer crashes or dies. You can be assured that inconsistent state (saved inode but not data, etc) is recoverable... It still won't save you when the power to the drive cuts when you're in the middle of the write. The drive will start spinning down, the heads will not be writing or may be writing garbage as the drive electronics lose power, etc. No amount of software will save you from that unless you have prior notice that the power is about to go out and to stop issuing commands to the drive other than 'spin down'. -- snarlydwarf ------------------------------------------------------------------------ snarlydwarf's Profile: http://forums.slimdevices.com/member.php?userid=1179 View this thread: http://forums.slimdevices.com/showthread.php?t=80447
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