Disk Drive Failure In A Raid 0 Array; Multiple Failures In The Same Array; Failed Drive In Maxiq Pool; Resetting The Controller - Adaptec 5085 Installation And User Manual

Serial attached scsi raid controllers
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If there are more disk drive failures than hot spares, see
Spare.
If copyback is enabled, data is moved back to its original location once the controller detects
that the failed drive has been replaced.

Disk Drive Failure in a RAID 0 Array

Because RAID 0 volumes do not include redundancy, if a disk drive fails in a RAID 0 array, the
data can't be recovered.
Correct the cause of the failure or replace the failed disk drives. Then, restore your data (if
available).

Multiple Failures in the Same Array

Except in RAID 6 and RAID 60 arrays (see
same time in the same array, the data normally can't be recovered.
You may be able to recover the data by forcing the logical drive online or by recreating the
logical drive without the initialization step. You can use the BIOS utility, ACU (see
the command-line utility, ARCCONF, or Adaptec Storage Manager. For more information,
refer to the Adaptec RAID Controller Command Line Interface User's Guide and the Adaptec.
Storage Manager User's Guide
Note:
In some instances, RAID 10 and RAID 50 arrays may survive multiple disk drive failures,
depending on which disk drives fail.

Failed Drive in MaxIQ Pool

Because Solid State Drives (SSD) in the MaxIQ pool are used just for caching, not permanent
storage, no data recovery or rebuilding is necessary. Once you identify the failed SSD, for
example, by using Adaptec Storage Manager's rapid fault isolation feature, replace the failed
SSD with a new one (see
instructions on

Resetting the Controller

This section explains how to reset (or Mode 0 flash) your Adaptec RAID controller. You may
want to do this if the controller becomes inoperable, or if a firmware upgrade is unsuccessful.
To reset your Adaptec RAID controller:
Download the firmware version currently installed on your controller from
1
www.adaptec.com.
Extract the down-loaded files to a folder on your local hard drive (for example,
2
C:\Download\Drivers).
Copy the file AFU.exe (from the RAID Controller installation DVD) and the firmware
3
image files (typically *.ufi) to a bootable DOS floppy disk, USB flash drive, or writable CD-
ROM.
Note:
Due to space limitations with floppy disks, you may need to create a bootable DOS
floppy disk for each firmware image.
.
page
48), then add the SSD to the MaxIQ pool following the
page 101
or by using Adaptec Storage Manager.
Chapter 10: Solving Problems
Failed Disk Drive Not Protected by a Hot
page
87), if more than one disk drive fails at the
78
page
74),

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