Product manual

Chapter 8: Troubleshooting
401
• Degraded with a yellow ! icon when ONE physical drive is offline.
• Critical with a yellow ! icon when TWO physical drives are offline.
RAID 0 logical drives show Offline status and a red X icon.
If there is no spare drive or unconfigured drive in the RAID system, you must
provide the replacement drive. See “Installing Physical Drives” on page 21.
• Administration tab
Depending on your settings and availability of a replacement drive, your
system automatically rebuilds the degraded disk array. See “Rebuilding a
Disk Array” on page 402.
The system sends an Email message about the incident to subscribing
users, depending on user settings. See “Setting User Event Subscriptions”
on page 103.
Disk Array Offline/Logical Drive Offline
Disk arrays are made up of physical drives. Logical drives are created on the disk
array. When a disk array and its logical drives go Offline, the data stored in the
logical drives is no longer accessible.
RAID 0 logical drives go Offline when ONE physical drive is removed or fails.
RAID 1, 1E, 5, 10, and 50 logical drives go Offline when TWO physical drives
are removed or fail.
RAID 6 and 60 logical drives go Offline when THREE physical drives are
removed or fail.
WebPAM PROe reports these conditions in the following places:
• Dashboard tab
A red X icon appears beside the disk arrays, logical drives, and physical
drives under System Status.
Major event for the logical drive under Event Information
Warning event for the physical drive under Event Information.
•Device tab
On Front View and Physical Drive View, physical drives are shown Dead,
Offline, or Missing.
•Storage tab
Disk array and logical drives are marked with a red X icon.
• Administration tab