Re: RAID5/ext3 trouble...

2007-03-18 Thread Amos Shapira
On 18/03/07, Dan Bar Dov <[EMAIL PROTECTED]> wrote: That's a good question to which I have no answer. I don't know how google do it. I can think of 1. special file system 2. some kind of "scrubber" - a daemon scanning for FS changes and copying whatever changed 3. use a sync tool (rsync?) on ada

Re: RAID5/ext3 trouble...

2007-03-18 Thread Dan Bar Dov
That's a good question to which I have no answer. I don't know how google do it. I can think of 1. special file system 2. some kind of "scrubber" - a daemon scanning for FS changes and copying whatever changed 3. use a sync tool (rsync?) on adaily (hourly?) basis I doubt google has 1. This is som

Re: RAID5/ext3 trouble...

2007-03-17 Thread Amos Shapira
On 07/03/07, Dan Bar Dov <[EMAIL PROTECTED]> wrote: I suggest you read the latest summary on the reports on storage at http://storagemojo.com/?p=383 http://storagemojo.com/?p=378 The bottom line conclusions I made out of those are 1. Do not use RAID5. Stick to RAID 1 (0+1). 2. Use cheap SATA st

Re: RAID5/ext3 trouble...

2007-03-06 Thread Dan Bar Dov
I suggest you read the latest summary on the reports on storage at http://storagemojo.com/?p=383 http://storagemojo.com/?p=378 The bottom line conclusions I made out of those are 1. Do not use RAID5. Stick to RAID 1 (0+1). 2. Use cheap SATA storage - even build-yourself. The big bucks don't buy y

RAID5/ext3 trouble...

2007-03-04 Thread Gunny Smith
Hey all I formerly had a gentoo box with a 4x250GB software RAID5, no LVM, ext3 filesystem, using disks sdc,sdd,sde and sdf. sda and sdb were the OS disks. I was to move the RAID over to a new machine running debian. Further to this, my backup of the data turned out to be only partial. The new d