Compaq Infortrend manual Advanced Features

Auto-scan of replacement	Supported
drive upon manually
initiated rebuild
One-step rebuild onto a	Supported
replacement drive
Immediate logical drive	Supported
availability
Auto-rebuild onto failed	Supported. With no spare drive, the controller will
drive replacement	auto-scan the failed drive and starts rebuild
	automatically once the failed drive has been replaced.
Background firmware	Firmware can be downloaded during active I/Os.
download	Administrators may find appropriate time to reset
	controller later.
Auto recovery from logical	Supported. When user accidentally removed the
drive failure	wrong drive to cause the 2nd drive failure of a one-
	drive-failed RAID5 / RAID3 logical drive, fatal error may
	occur. However, you may force the controller to
	reaccept the logical drive by switching off the controller,
	installing the drive back to its original drive slot, and
	then power on the controller. The logical drive will be
	restored to the one-drive-failed status.

Advanced Features:

Media Scan	Supported. Verify written data on drives to avoid bad
	blocks from causing data inconsistency.
Transparent reset of hung	Supported
HDDs
Auto cache flush on critical	When critical conditions occur, e.g., component failure,
conditions	or BBU under charge, cached data will be flushed and
	the write policy will be changed to write-through mode.
Drive Low-level format	Supported
Drive Identification	Supported. Force the drive to light on the activity
	indicator for user to recognize the correct drive.
Drive Information Listing	Supported. Drive vendor name, model number,
	firmware revision, capacity (blocks), serial number,
	narrow/wide and current sync. speed.
Drive Read/Write testing	Supported
Configuration on Disk	Supported. The logical drive information is recorded
	on drive media. The logical drives can still be
	accessed if using different Infortrend RAID
	controllers/subsystems.
Save/ Restore NVRAM to /	Supported. Save all the settings stored in the
from Disks	controller NVRAM to the logical drive members
Save / Restore NVRAM to /	Supported. Save all the settings stored in the
from a file	controller NVRAM to a file (via GUI manager) on user’s
	computer.

B-2 Infortrend