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тАО06-29-2005 08:03 PM
тАО06-29-2005 08:03 PM
How to best expand array capacity?
1. Replace drives one by one (requires a lot of time)?
2. Backup all content, replace all drives at one time and then restore all data from backup?
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тАО06-29-2005 08:10 PM
тАО06-29-2005 08:10 PM
Re: How to best expand array capacity?
- replacing 12 disks means that the system is running without RAID protection for quite some time
- you will need to extent the logical disk after you have expanded the disk array which will require additional time
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тАО06-29-2005 08:16 PM
тАО06-29-2005 08:16 PM
Re: How to best expand array capacity?
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тАО06-29-2005 08:21 PM
тАО06-29-2005 08:21 PM
Re: How to best expand array capacity?
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тАО06-29-2005 10:39 PM
тАО06-29-2005 10:39 PM
Re: How to best expand array capacity?
1. You can backup youre current array configuration with the ACU/XE command line interface. Syntax should be in the ACU/XE documentation.
2. Power down an remove physical disks. Be very carful to know where the disk belongs if you need to put them back.
3. Power up MSA and remove the "failed" array in ACU/XE.
4. Add new disk. Configure new raid/lun. Restore data from tape.
If anything failes, remove the "new array" configuration in ACU/XE. Power down and put the old disk back. Boot the MSA. If the MSA are not able to read the old array configuration from the disk, use the configuration made in step 1.
KurtG
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тАО06-30-2005 08:50 PM
тАО06-30-2005 08:50 PM
Re: How to best expand array capacity?
1 chanel - RAID 1 (OS)
2 chanel - RAID 1 (DATA)
3,4 chanel - RAID 1+0 (DATA)
If I remove all array configuration I lost my other's logical disks configuration and data. If I can delete only RAID 1+0 configuration?