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тАО05-11-2009 12:50 PM
тАО05-11-2009 12:50 PM
I have 2x146GB drives (RAID1).
I have an extra 146GB drive and wish to add to convert the RAID1 to RAID5 seamlessly and without loss of data.
Is this possible ?
The config detail shows:
Smart Array E200 in Slot 3
Bus Interface: PCI
Slot: 3
Serial Number: xxxx
RAID 6 (ADG) Status: Disabled
Controller Status: OK
Chassis Slot:
Hardware Revision: Rev A
Firmware Version: 1.80
Rebuild Priority: Medium
Expand Priority: Medium
Surface Scan Delay: 15 secs
Post Prompt Timeout: 0 secs
Cache Board Present: True
Cache Status: OK
Accelerator Ratio: 100% Read / 0% Write
Drive Write Cache: Disabled
Total Cache Size: 64 MB
Battery Pack Count: 0
SATA NCQ Supported: False
Array: A
Interface Type: SAS
Unused Space: 0 MB
Status: OK
Logical Drive: 1
Size: 136.7 GB
Fault Tolerance: RAID 1
Heads: 255
Sectors Per Track: 32
Cylinders: 35132
Stripe Size: 128 KB
Status: OK
Array Accelerator: Enabled
Unique Identifier: xxxx
Disk Name: /dev/cciss/c0d0
Mount Points: /boot 250 MB
Logical Drive Label: xxx
Mirror Group 0:
physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SAS, 146 GB, OK)
Mirror Group 1:
physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS, 146 GB, OK)
Regards,
Erick Aguiar
Solved! Go to Solution.
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тАО05-11-2009 05:40 PM
тАО05-11-2009 05:40 PM
SolutionTo support RAID 5 and Online RAID migration requires the BBWC option.
For an E200 in a DL380 you would need to purchase the following part
351580-B21 - 128MB Battery-Backed Write Cache
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тАО05-11-2009 09:22 PM
тАО05-11-2009 09:22 PM
Re: Convert RAID1 to RAID5 - Smart Array E200 DL380 G5
you can do that on-line via ACU (Array Configuration Utility).
Rgds//
Taifur
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тАО05-12-2009 03:38 AM
тАО05-12-2009 03:38 AM
Re: Convert RAID1 to RAID5 - Smart Array E200 DL380 G5
Would it be the "Drive Write Cache: Disabled" shown in the config detail ?
Thanks in advance!
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тАО05-12-2009 06:05 PM
тАО05-12-2009 06:05 PM
Re: Convert RAID1 to RAID5 - Smart Array E200 DL380 G5
Total Cache Size: 64 MB
Battery Pack Count: 0
BBWC is 128MB and it would also indicate here if there was a battery pack.
Below is a capture from a P400 in one of our servers which definitely has the BBWC installed
Total Memory on Controller 512 MB
Battery Pack Count 1
Battery Status OK
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тАО05-13-2009 03:57 AM
тАО05-13-2009 03:57 AM
Re: Convert RAID1 to RAID5 - Smart Array E200 DL380 G5
I'll try to get a 4th disk and then create an array B with RAID1.
Thanks very much!
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тАО05-17-2009 07:02 PM
тАО05-17-2009 07:02 PM
Re: Convert RAID1 to RAID5 - Smart Array E200 DL380 G5
Online Capacity Expansion (with BBWC upgrade)
Online RAID Level Migration (with BBWC upgrade)
Online Stripe Size Migration (with BBWC upgrade)
So as long as you are happy just creating a new array rather than expanding your existing one then all you need is the extra drive. Otherwise for any sort of expansion to the existing array (even if you stay with RAID 1+0) you will need the BBWC.