Promise Technology S150 user manual Selecting Array Type, Selecting Stripe Block

FastTrak S150 TX4 User Manual

Selecting Array Type

1.Under the Definition section of this menu, highlight the Array # for which you want to assign a RAID level.

2.Press the Spacebar to cycle through three array types:

•Performance (RAID 0 Striping)

•Security (RAID 1 Mirroring)

•RAID 0+1 Striping/Mirroring (for 4 drives)

See page 45 for more information about RAID levels.

FastBuild (tm) Utility 2.xx (c) 2002-2005 Promise Technology, Inc.

[ Define Array Definition Menu ]

Array No	RAID Mode		Total Drv	Status
Array 1	Stripe		2	Functional
Stripe Block: 64 KB				Gigabyte Boundary: ON
		[ Drive Assignments ]
Channel:ID			Drive Model	Assignment
1 :	SEAGATE S380023AS			Y
2 :	SEAGATE S380023AS			Y
3 :	SEAGATE S380023AS			N
4 :	SEAGATE S380023AS			N
		[ Keys Available ]
[↑ ] Up [↓ ] Down	[ESC] Exit	[Space] Select [Ctrl-Y] Save

Selecting Stripe Block

For RAID 0 and RAID 0+1 arrays you may manually select the stripe block size. Press the Spacebar to scroll through choices progressing as follows (16, 32, 64, 128 KB).

The size selected affects how FastTrak S150 TX4 sends and retrieves data blocks to and from the drives. You will need to perform your own testing to determine how the data block size is affecting your particular use of the array. In general, a larger block size is better when handling large data transfers (such as in A/V editing or graphics) while a smaller block size is better when handling e- mail and other common server data. The default is 64KB.

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