Seagate ST39173WC Specifications download pdf (Page 52)

3-8 Sun StorEdge A1000 and A3x00/A3500FC Best Practices Guide • November 2002

Note – Do not revive a drive if it is failed by the controller. Refer to the Sun StorEdge

RAID Manager User’s Guide.

3.2.6 Creation Process (Serial/Parallel) Time

■ LUNs can be created with either CLI or the GUI. Use the GUI to create LUNs for

better coordination between the various back-end utilities.

■ Be sure that an Optimal LUN 0 resides on one of the controllers and an Optimal

LUN exists on the other controller before you attempt parallel LUN creation. See

FIN I0573-02 or later for details on the importance of LUN 0. This condition is

very important in the case of LUN creation via script with CLI.

■ If you must create LUNs with CLI, allow a delay of 1 to 3 minutes between each

CLI (raidutil) process so the device path creation on the Solaris side has a

chance to complete before the next one starts.

■ Parallel LUN creation means that multiple LUNs are in the formatting state as

reported by the GUI.

■ The creation of multiple LUNs in the same drive group is processed in serial.

■ A limit of four LUNs can be created in parallel in each controller. Any more than

four is queued in the controller.

■ RAID Manager 6.1.1 takes 3 minutes to format 1-GB of storage under optimal

conditions. For example, a 10-GB RAID 5 (4+1) LUN takes 10-GB x 3 min/GB = 30

minutes. Refer to Chapter 3 in the Sun StorEdge RAID Manager 6.1.1 User’s Guide

for details and restrictions.

■ RAID Manager 6.22x takes 2 to 5 minutes for a LUN to become Optimal while the

actual format is taking place in the background. Refer to Chapter 4 in the Sun

StorEdge RAID Manager 6.22 User’s Guide for details and restrictions.

3.2.7 DacStor Size (Upgrades)

Consider the following when upgrading from RAID Manager 6.0/RAID Manager

6.1 to RAID Manager 6.1.1 and later.

DacStore size is different between LUNs created under RAID Manager 6.0/6.1 vs.

RAID Manager 6.1.1/6.22x. This is an issue with customers who are running RAID

Manager 6.0 or RAID Manager 6.1 and want to upgrade to RAID Manager 6.1.1 or

RAID Manager 6.22x. See FIN I0557-2 for details.

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Seagate ST39173WC Specifications Page 52