Hear ATEN Product Manager YT Liang review HDBaseT technology, highlighting ATEN’s latest solutions as they relate to real-world applications during her presentation at the HDBaseT booth at InfoComm 2017.
Solved
SAS HDD Replacment
Posted on 2012-12-25
Dear Experts,
i have HPDL380G7 serevr, with HP P410i controller running win 2008std as file server... currently i am having 300GB SAS HDD, can i replace 300GB one by one to 900GB SAS 10K?
thanks for the help
i have HPDL380G7 serevr, with HP P410i controller running win 2008std as file server... currently i am having 300GB SAS HDD, can i replace 300GB one by one to 900GB SAS 10K?
thanks for the help
[X]
Welcome to Experts Exchange
Add your voice to the tech community where 5M+ people just like you are talking about what matters.
- Help others & share knowledge
- Earn cash & points
- Learn & ask questions
3
5 Comments
Active 3 days ago
Yes, but bad idea. It won't magically give you 900GB usable, and it puts your data at risk.
Active 3 days ago
The right way to do it is create a full backup, replace all of the disks, build a new RAID set, then restore.
Active 3 days ago
The RAID setup doesn't matter. If you swap out one disk of a time, then you degrade whatever config you have during the rebuild and you expose yourself to data loss. Remember you don't just have data loss when a disk fails. Unless you are using RAID6, then all it takes is one unreadable block, and then you lose data.
P.S., When it is all over, the capacity will be exactly as it was when you started. You will still have to resize.
It will also take much longer to rebuild than to do a backup / restore. Not only that, but you will still have the original disks with your data, so in event you have a read error on the restore, then your original disks can be forced back in, so you have zero risk of data loss.
Unless you have a means to prevent ECC errors, drive failures, and unreadable blocks in the future, then a swap upgrade is just stupid. Sorry, but you won't get permission from any storage pro that this scheme is either safe or a wise thing to do. If the data is valuable and something bad does happen on a swap upgrade, ask yourself if you are risking your job or a lawsuit. Do the right thing and backup first.
P.S., When it is all over, the capacity will be exactly as it was when you started. You will still have to resize.
It will also take much longer to rebuild than to do a backup / restore. Not only that, but you will still have the original disks with your data, so in event you have a read error on the restore, then your original disks can be forced back in, so you have zero risk of data loss.
Unless you have a means to prevent ECC errors, drive failures, and unreadable blocks in the future, then a swap upgrade is just stupid. Sorry, but you won't get permission from any storage pro that this scheme is either safe or a wise thing to do. If the data is valuable and something bad does happen on a swap upgrade, ask yourself if you are risking your job or a lawsuit. Do the right thing and backup first.
It is a supported method, see http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00572169/c00572169.pdf in the section entitled "Upgrading hard drive capacity".
Bear in mind as dlethe says you may encounter a bad block and then have to restore from backup but that risk is always there when a hard disk fails (or is deliberately pulled).
Do you not have any spare drive bays? Adding disks to the array is superior as you always have parity even during the re-levelling process. You can get an additional 8 disk bay for that server, quite easy to fit although you have to remove the DVD. You can either have 8+8 disks with two controllers or all 16 on one controller with addition of SAS expander card. SAS expander card is a bit fiddly to fit because of all the cables.
Bear in mind also that going from sub 2TiB to greater than 2 TiB may be a problem as your current filesystem may have a 2TiB boundary.
Bear in mind as dlethe says you may encounter a bad block and then have to restore from backup but that risk is always there when a hard disk fails (or is deliberately pulled).
Do you not have any spare drive bays? Adding disks to the array is superior as you always have parity even during the re-levelling process. You can get an additional 8 disk bay for that server, quite easy to fit although you have to remove the DVD. You can either have 8+8 disks with two controllers or all 16 on one controller with addition of SAS expander card. SAS expander card is a bit fiddly to fit because of all the cables.
Bear in mind also that going from sub 2TiB to greater than 2 TiB may be a problem as your current filesystem may have a 2TiB boundary.
Featured Post
Question has a verified solution.
If you are experiencing a similar issue, please ask a related question
This article shows how to use a free utility called 'Parkdale' to easily test the performance and benchmark any Hard Drive(s) installed in your computer. We also look at RAM Disks and their speed comparisons.
- Storage Software
- Windows OS
- Mac OS X
- Storage Hardware
- Hardware
- Android, *Memory
Backups and Disaster RecoveryIn this post, we’ll look at strategies for backups and disaster recovery.
- Server Hardware
- IT Administration
- Disaster Recovery
- Storage Software
- Databases
- Storage Hardware, MySQL Server, Hardware, Percona, *Backups
In this video, Percona Director of Solution Engineering Jon Tobin discusses the function and features of Percona Server for MongoDB.
How Percona can help
Percona can help you determine if Percona Server for MongoDB is the right solution for …
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB.
To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…
Suggested Courses
Course of the Month7 days, 13 hours left to enroll
715 members asked questions and received personalized solutions in the past 7 days.
Join the community of 500,000 technology professionals and ask your questions.