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non hot-swap failure
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Posted by sniperscope, 03-18-2012, 09:18 PM Dear All I am not sure if here is right place or not. If not then i am sorry. I have a Dell R200 web server with hardware raid(raid-1) Non-hotswap. Sooner or later i will face HDD failure since HDD is a mechanical device. I want to ask how can i change failed HDD with minimal downtime? I am using MegaRaid, does it automatically copy data to newly installed HDD? How about if stripes(or blocks or whatever) also failed? I feel pain in my stomach even thinking this scenario. So, i want to know what to do before it happen. Regards
Posted by Dustin B Cisneros, 03-18-2012, 09:54 PM RAID-1 is a mirror... all data from 1 drive is mirrored to the secondary, Additionally the stomach ache can go away. HOW? #1 BACKUP your data offsite #2 KEEP utilizing RAID-1 (as you are) AND IN THE FUTURE, when you can pick hot swap chassis so that if a drive needs to be replaced you can do so without downtime (since you want no downtime) if you are ok with minimal downtime then non hot-swap is ok #_#. Last edited by Dustin B Cisneros; 03-18-2012 at 10:05 PM.
Posted by sniperscope, 03-18-2012, 10:00 PM Dear Semoweb Thanks for your reply. I've read some website that stripes was broken on Raid-1 card therefor newly installed HDD also has problem mirroring data. And yes, i am taking weekly backup to Buffalo Tera Station with no network connection(i back to an external HDD and then copy it to Tera St. manually) Oh... i just remember to ask one more question. Is there any way to clone Centos 5.7 with WHM installed(like acronis true image) to and external Backup storage. So if Centos failed or hard disk failed then i can simply burn image file to dvd and install like nothing happen. Regards
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