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Comments:
<0> GiftdKook: sata or ide?
<1> fsck /dev/sda1 shows that it is clean.
<1> but
<0> SATA I see.
<1> when I mount it, I can not read the contents of /etc
<0> wait
<1> waiting
<0> does /dev/sda1 contain the full root filesystem?
<0> or just /var or /home etc?
<1> everything except home
<0> what happens when you run ls -l /mount_point/etc
<0> just shows nothing?
<1> and it is part of a RAID1 array
<2> oh
<2> did you see my wall? :)
<1> input/output error
<2> do you have that irssi wall alias?
<0> GiftdKook: means 2 things
<0> nagual_: no.
<0> GiftdKook: either #1 - FS corruption, you can force fsck
<1> yeah. input error and output error. :P
<0> GiftdKook: or bad sectors on teh disk
<0> GiftdKook: type dmesg | tail -n 2
<0> what does it show?
<1> the standard ext3 mount
<1> nothing out of the ordinary
<3> no crc or seek errors?
<0> GiftdKook: you need to run 2.6.15 or higher to do disk tesrs, lets do this
<0> Napta: correct
<0> GiftdKook: umount /mnt/point
<3> fsck it
<0> GiftdKook: you are running ext3 yes?
<1> ok. umounted
<1> yeah
<0> GiftdKook: e2fsck -f /dev/md4
<0> (FORCE FSCK)
<3> brb
<1> ok. I will create the array with just one drive.
<0> no
<0> you can do both
<0> use the -f option
<0> -f Force checking even if the file system seems clean.
<0> the raid1 should be fine [underlying device/MD/rAID1]
<2> hey mik
<2> mikew
<0> once created, run e2fsck -y /dev/md4
<0> er
<0> e2fsck -f -y /dev/md4
<0> tell me what happens
<4> sup nagual
<2> watching house
<1> proceeding
<2> how are you?
<5> peachy, nagual_
<0> GiftdKook: is it running? noerrors?
<1> lotsa errors
<2> mikew, what hobbies do you have? i guess watching tv is pretty boring for you
<4> yeah kinda
<0> GiftdKook: like questions regarding inodes and duplicate blocks etc?
<1> yep.
<0> GiftdKook: You have suffered ext2/3 corruption it sounds like-- how it happened? Im not sure, RAID1 wont save you there.
<1> /etc/ is now totally gone.
<0> because the corruption hits both drives
<0> w/RAID1
<0> GiftdKook: I used to use ex2
<1> lost+found is chock full of junk
<0> GiftdKook: I switched to XFS a long time ago
<0> yeap
<0> re-install time
<0> or restore from backup
<1> hrmm. I think I have a backup. ;)
<1> on the other two disused drives. :)
<0> GiftdKook: ah didnt read that part k
<1> Napta was saying how stupid it is to have a RAID1 with 4 drives.
<1> it has its uses. :P
<0> raid1 doesnt make sense for 4 disks
<0> raid10 would be the best options
<0> raid10 would be the best option*
<1> there are times when it does make sense.
<1> I use the remaining space for RAID5, you see.
<1> ./ is merely 2GB or so.
<1> 3GB
<0> or do that
<0> creates disk contention though if both volumes are utilized at the same time though
<1> I can live with a little contention. :P
<0> lol
<0> I cant that is whyi built my new boz
<0> old box = 400gb x 10
<0> mix of sata/ide on pci motherboard = slow
<0> 120mb/s read, 39mb/s write
<0> everything now = PCI-e on its own dedicated chans, nothing ide cept dvdr
<0> everything now = PCI-e on its own dedicated chans, nothing ide cept dvdrw
<0> when everything is its own dedicated channel for bandwidth, speed rips
<2> war_: are you drunk?
<0> nagual_: no, the only thing that makes me happy is when I talk about disk arrays, raid and XFS + debina
<0> nagual_: why?
<2> just curious
<0> k
<2> you repeat stuff :)
<0> yeah, sed 's/dvdr/dvdrw/g' would have been more efficient
<1> war_, I guess I should talk to you before I buy a new box.
<1> what kind of speeds do you see now?
<0> GiftdKook: with RAID0 I have benchmarked 317MB/s write (Raid0)
<0> GiftdKook: and 297MB/s read
<0> with no tweaks, XFS
<0> with RAID5, as I mentioned before, 197MB/s read and 210MB/s write
<1> I only get ~90 with xfs on RAIDs
<0> GiftdKook: On PCI Bus?
<1> RAID1 and RAID6
<1> I guess so.
<0> GiftdKook: PCI bus you will never get anything more than 133mb/s
<0> GiftdKook: so forget about it :)
<0> GiftdKook: I spent like 12 mos researching everything :)
<1> ok. so, what do I look for?
<0> GiftdKook: how much do you want to spend?
<0> GiftdKook: and want to use SW or HW raid?
<1> SW raid. cost depends
<0> GiftdKook: Then do what I did.
<0> GiftdKook: I got a motherboard Intel 965 (6 sata ports)
<0> GiftdKook: and 4 SATA SiL 3124 cards
<0> GiftdKook: each has a dedicated bw (PCI-e x1 of 250mb/s) 2 ports per card
<0> 6 sata onboard, 4x2 = 8+6 == 14 drives total
<1> ah, perfect.
<1> what case?
<0> there is only 1 case imo that kicks ***, also researched that for several months
<0> sec
<0> http://www.newegg.com/Product/Product.asp?Item=N82E16811119042
<0> Holds 12 HDDs with 4x3 modules, it comes with 1 you have to buy 2 more for $19.99 each elsehwere.
<0> the PCI-e x1 cards are $19.99 each a well.
<1> newegg used to carry a great, cheap case that'd hold 11 drives with good cooling.
<0> GiftdKook: that case ^^ above can hold two psus
<0> GiftdKook: and it is GIGANTIC
<1> the manufacturer stopped making it and turned to making cases that look like alien heads.
<0> GiftdKook: it weighs 100+ pounds with drives in it
<0> GiftdKook: so you got to be strong :)
<0> GiftdKook: you can fit a small kid inside it
<0> GiftdKook: I like space
<1> I like to keep things small.
<0> small != good for cooling
<1> this old case is standard size.
<1> depends.
<0> I have a standard case size which uses all 80mm fans etc , PIA , and its cramped to work in
<0> I don't like cramps etc
<1> if you put in, oh, 10fans, you have excellent cooling.
<0> I use 120mm fans mainly
<0> in new box
<0> in old box I had 80mm x 10 fans and 1 120mm in the front
<0> I still keep it as 1.8tb raid5
<0> and another with 890gb raid5
<0> as 'spare space'
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