RAID maintenance not showing raided drive

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Cem Basu

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Dec 25, 2013, 1:14:42 PM12/25/13

I know various incarnations of this issue exist scattered around, but I'm getting the following after creating (used Wizard) a RAID1 with 2x4TB drives. I tried the code fix for raid.cgi, but that did not resolve.

RAID Creation and Maintenance

fdisk: device has more than 2^32 sectors, can't use all of them fdisk: device has more than 2^32 sectors, can't use all of them

RAID Creation

Dev.	Type	Component 1	Component 2	Spare
md0

RAID Maintenance

Dev.	Capacity	Level	Components		Array	RAID Operations	Component Operations

There is nothing listed under the Maintenance for my md0, however I do have output from mdadm -

# mdadm --detail /dev/md0

/dev/md0:

Version : 1.2

Creation Time : Tue Dec 24 07:21:24 2013

Raid Level : raid1

Array Size : 3906492112 (3725.52 GiB 4000.25 GB)

Used Dev Size : 3906492112 (3725.52 GiB 4000.25 GB)

Raid Devices : 2

Total Devices : 2

Persistence : Superblock is persistent

Intent Bitmap : Internal

Update Time : Wed Dec 25 08:18:23 2013

State : active, degraded, recovering

Active Devices : 1

Working Devices : 2

Failed Devices : 0

Spare Devices : 1

Rebuild Status : 17% complete

Name : dns323:0 (local to host dns323)

UUID : 81c65205:33c1b554:84045d6b:52868c4c

Events : 115607

Number Major Minor RaidDevice State

0 8 18 0 active sync /dev/sdb2

1 8 34 1 spare rebuilding /dev/sdc2

I can access the contents/data without issue and just recently kicked off the rebuild due to upgrading from 1TB to 4TB - had both 1x1TB (md1, degraded) and 1x4TB (md0, degraded) in the DNS323 to cp/rsync the data from 1TB to the 4TB.

Any suggestions?

Cem Basu

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Dec 25, 2013, 1:40:49 PM12/25/13

to al...@googlegroups.com

UPDATE: I tried the patch script but it would not take effect (created a backup copy of raid.cgi before applying anything. So I decided to insert the updated code lines manually (not recommended for newb) and it worked like a charm. Steps I took:

1. cd /usr/www/cgi-bin

2. cp -p raid.cgi raid.cgi_orig

3. vi raid.cgi, searched for 'curdev' and performed the following updates

# THIS IS RIGHT! first non-existing md device

#curdev=$(mdadm --examine --scan | awk '/ARRAY/{ print substr($2, match($2, "md"))}')

#for dev in $(seq 0 9); do

# if ! echo $curdev | grep -q md$dev; then break; fi

#done

# for metadata 1.2 mdadm reports /dev/md/0, /dev/md/1... which are simlinks to /dev/md0, /dev/md1...

curdev=$(for i in $(mdadm --examine --scan | awk '/ARRAY/{ print substr($2, match($2, "md"))}'); do

if test -h /dev/$i; then

if a=$(readlink -f /dev/$i); then basename $a; fi

else

echo $i

done)

for dev in $(seq 0 9); do

if ! echo $curdev | grep -q md$dev; then break; fi

done

4. Saved it out

5. Tested the web gui RAID page

This pulled up my RAID,

RAID Creation and Maintenance

When done you must save settings

fdisk: device has more than 2^32 sectors, can't use all of them fdisk: device has more than 2^32 sectors, can't use all of them