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Rebuild Raid 1 Without Losing Data


When you are comfortable with the proposed changes, supply the --fix option. Recently one of two drives failed, so I bought a new one (1TB WD Blue) and put it on. The example shows that the only hard drive seen is on Port 0. SourceForge Browse Enterprise Blog Deals Help Create Log In or Join Solution Centers Go Parallel Resources Newsletters Cloud Storage Providers Business VoIP Providers Call Center Providers Home Browse Alt-F Wiki Alt-F http://lebloggeek.com/raid-1/raid-rebuild-time-calculator.html

The following method has always worked for me for RAID 1 recovery, which I have had to do several times. If you wish, you can try designating one of the disks as a ''failed disk''. What do I do now?> Solved Critical Error on RAID 1 Drive!!! view as pdf | print Share this page: Tweet Follow 71 Comment(s) Add comment Name * Email * Comments From: Reply Thanks for the great article.

Rebuild Raid 1 Without Losing Data

C: remove the failed disk from the box You can now either: 1. then under "Operation" select "Remove" The RAID should continue in the degraded state, but no component will be red. The disks now have identical partition tables and, most important, the new disk has a RAID partition of the same capacity and type as the RAID partition of the old disk. Press the Ctrl + I keys together when prompted to enter the Intel RAID Option ROM utility.

The first time I rebooted I had forgotten the power cable on one of the disks in the RAID1 (mirror) and let it boot up. In a pinch, mirroring can be disabled, and one of the partitions can be mounted and safely run as an ordinary, non-RAID file system. Why do I mention that? Mdadm Rebuild Raid 5 The procedure should be similar, but there should be some way to make a backup or clone of a disk that can then be made bootable.

Press the Esc key to exit the Intel RAID Option ROM utility. Re: Raid 1 rebuild with Rapid Storage Technology ThiloB Jun 17, 2016 11:41 AM (in response to joe_intel) Sorry for digging out this old Thread, but this is exactly my problem:When This is the key factor and is all that is needed to rebuild the degraded RAID array. i have a question, i have a Raid 1 by software, same cfg that you, the md0 its the swap partition and the md1 its the / when i first start,

I am concerned that it won't be, and this confusion could lead to some dangerous decisions by a sysadmin. Mdadm Rebuild Raid 1 More discussions in Servers All PlacesSupport CommunityServers 8 Replies Latest reply on Aug 4, 2016 6:45 AM by ThiloB Raid 1 rebuild with Rapid Storage Technology willough Jun 4, 2014 10:04 For example, do I need to format the new hard drive I install first? Recently, the disk with /dev/hdc3 failed, and was replaced with a new disk.

Mdadm Replace Failed Drive Raid 1

No, then please go to the guide below : Understanding and Troubleshooting your Hard Drive Are you getting an error before the RAID screen loads? As of October 97, there is a beta version of MD that allows: RAID 1 and 5 reconstruction on spare drives RAID-5 parity reconstruction after an unclean shutdown spare disk to Rebuild Raid 1 Without Losing Data RAID controller marked it as fault and put it offline. Raid 1 Hard Drive Replacement For instance, a sector being relocated (this is by design in the disk; if a sector is marked as bad it can be relocated).

Aparently the RAID controller is an AMD SB710 chip. his comment is here I partitioned the new one with gfdisk but could not add it to the array. You have a 50/50 chance that your Bios is pointing to the blank disk. Any advice on a /dev/sda master mirror disk failure? Mdadm Replace Failed Drive Raid 5

Nederland Land selecteren Afghanistan Albanië Algerije Amerikaanse Maagdeneilanden Angola Anguilla Antigua en Barbuda Argentinië Armenië Aruba Australië Azerbeidzjan Aziatisch-Pacifisch gebied Bahama's Bahrein Bangladesh Barbados België Belize Benin Bermuda Bhutan Bolivia Bosnië-Hercegovina And, in case you are wondering, yes, someone lost all of their data by making this mistake. My preferred course of action here is to contact the manufacturer, replace with better disks, restore from backup. http://lebloggeek.com/raid-1/raid-movie.html Not the answer you're looking for?

I guess what I'm saying is it depends (for logs). Mdadm Grow Raid 1 Back in the day of the IBM Deskstars fiasco, I had an entire set of 8 disks go bad all within 6 weeks after 4 years of usage. it mean the new single hd can boot by itself.thank you.

what should I do??

Rebuild will now start: $ cat /proc/mdstat Personalities: [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md1: active raid6 dm-0[1] dm-4[6] dm-5[5] dm-3[2] 305664 blocks super 1.2 level 6, 512k chunk, I'm pretty sure I know what happenned. From: Ruslan Reply Thanks for good instruction! Mdadm Add Drive To Raid 5 Reply With newer Linux versions and the uncertainties of disk enumeration order, I recommend using /dev/disk/by-id/drive-part-id rather than /dev/sdxy.

The goal is to get back to state 3 with minimal data loss. Is this REALLY necessary? Power up the computer. http://lebloggeek.com/raid-1/raid-5-degraded.html asked 4 years ago viewed 1219 times active 1 year ago Blog Stack Overflow Podcast #92 - The Guerilla Guide to Interviewing Related 0How to rebuild RAID1 with missing drive on

leave grub shell, leave chroot, leave rescue shell and reboot From: Anonymous Reply The computer hard drives have become a short-board, then the hard drive performance is really not be Thus, you can experiment with different possible repair schemes. Drive 0 (the one that failed first) ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE 1 Raw_Read_Error_Rate POSR-K 200 200 051 - 1 3 Spin_Up_Time POS--K 142 142 021 - 3866 It may make you feel more comfortable to reverse the direction of the copy above: copy from the disk that was untouched to the one that was.

After years of dealing with HP/Compaq arrays and the things we've recovered from these guys could stand to take a few lessons.