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Unread 02-21-2007, 02:08 PM   #1
hyp3r
Cooling Neophyte
 
Join Date: Feb 2007
Location: UK
Posts: 2
Mystery of the disappearing drive space - 4400

Hi All,

Wonder if you can help me. I've aquired (legally! ) a snap server 4400. It came with 4x120GB and I upgraded the drives to 4x320 however, on RAID5 I'm not seeing as much available space as I expected.

The drives are being recognised by the server on boot as being 320Gb (298) as below

Code:
                                        D0 MAXTOR STM3320820A  LBA          298G
B  Ultra DMA 5                          D1 Not Detected
D2 MAXTOR STM3320820A  LBA          298GB  Ultra DMA 5
D3 Not Detected                         D4 MAXTOR STM3320820A  LBA          298G
B  Ultra DMA 5                          D5 Not Detected
D6 MAXTOR STM3320820A  LBA          298GB  Ultra DMA 5
D7 Not Detected
IDE BUS Master Enabled
Which should surely equate to 3x320 (960Gb) usable with one complete drive lost to RAID5 parity (1.28Tb in total). However, when I go to the webbased admin section I see the following:

Code:
Location	Model	Size	Status
Drive 1 	312 GB MAXTOR-STM33208	236,205MB 	Member of md0 (RAID 5)
Drive 2 	312 GB MAXTOR-STM33208	236,205MB 	Member of md0 (RAID 5)
Drive 3 	312 GB MAXTOR-STM33208	236,205MB 	Member of md0 (RAID 5)
Drive 4 	312 GB MAXTOR-STM33208	236,205MB 	Member of md0 (RAID 5)

=========================================================

RAID Set Name:	md0
RAID Set Type:	RAID 5 (checksummed)
RAID Size:	708,480 MB
RAID Status:	OK

Location	Model	Size	Status	Actions
Drive 1	312 GB MAXTOR-STM33208	236,204MB	OK	Remove
Drive 2	312 GB MAXTOR-STM33208	236,204MB	OK	Remove
Drive 3	312 GB MAXTOR-STM33208	236,204MB	OK	Remove
Drive 4	312 GB MAXTOR-STM33208	236,204MB	OK	Remove
Only 708.5Gb usable... where have I lost ~200Gb too!?!?!

Quote:
Originally Posted by Isysxp
Just a short note giving an outline of recovering a 4400:

Original system from Quantum: Guardian 4400 256Mb + 996 MHz PIII
Disks 4* Deskstar IC35L120 (123.5GB)
OS Guardian 2.6.050

1 drive failed after 5 years therfores good idea to replace all of then.

1. Remove all old drives except drive 1 (left hand slot)
2. Put 1 new drive into slot 2 I used a Seagate 400GB
3. Power up and wait a while and you should be able to access the system via the webadmin pages as before.
4. Check Storage->Devices and see if the new drive is in the list (if not ... wait!)
5. Shutdown and move the new drive in slot 2 into slot 1.
6. Power up and with luck the system will boot OK. Check via webadmin. If This does not seem to work, attach a terminal to the serial port (115200,n8) and see what is happening. If the system appears to be regularly re-booting, start again.
7. After reboot and the system is up, plug in the rest of the new drives and wait.
8. Check Storage->Devices and you should see all of the new drives with the correct disk sizes. (Mine now shows 4*365Mb)
9. Rebuild you RAID sets etc. and have a nice day.

Best of, Isysxp
I followed the above and all was fine until step 8 - I didn't ever see the drives showing the size I expected in Storage->Devices.

Code:
sh-2.04$ df -aTH
Filesystem    Type    Size  Used Avail Use% Mounted on
/dev/md100root xfs    554M  316M  239M  57% /
none          proc       0     0     0   -  /proc
/dev/volgr0/lvol0
               xfs    743G  429G  314G  58% /hd/vol_mnt0
/hd/vol_mnt0/shares
               xfs    743G  429G  314G  58% /shares/SHARE1
/hd/vol_mnt0/backexcat/db
              none    743G  429G  314G  58% /var/backex/db
/hd/vol_mnt0/backexcat/sched
              none    743G  429G  314G  58% /var/backex/sched
/hd/vol_mnt0/backexcat/logs
              none    743G  429G  314G  58% /var/backex/logs
/hd/vol_mnt0/ca_antivirus
              none    743G  429G  314G  58% /apps/ca/antivirus/mnt
Is my understanding flawed or has something gone wrong when I replaced the original 120Gb drive with my new one?

There's one thing that I would tell myself if I were you guys, get the new OS. However, when I followed advice on this forum and asked Adaptec straight for the "free" v3.4xxx OS they simply just directed me to their service contracts, which I can't afford to punt out. Should they give out the 3.4 OS if I hassle them?

Server Model: Snap Server 4400
OS Version: 2.6.050

Heeeeeelp.

Thanks
hyp3r is offline   Reply With Quote