The 5E10 and later software releases support three layouts for 1GB optional disk pairs running in an office with a
3B21D processor. The options are as follows:
Option 1:
This option provides two disk partitions (each equal to one-half of the available disk space) for AMA
data.
Option 2:
This option provides one partition for SM ODD equal to 25 percent of the available disk space, and
two partitions of AMA data share the remaining 75 percent of available disk space.
Option 3:
This option provides one partition for SM ODD equal to 50 percent of the available disk space, and
two partitions of AMA data share the remaining 50 percent of available disk space.
If the growth of SCSI disks to an office currently equipped with only SMD disks is contemplated, a conversion to
SCSI primary disks with SMD disks as outboard disks is recommended since the 5E9 software release will require
this conversion. The maximum number of disk pairs remains the same as it would be for an office with 340-MB disk
drives. Offices that have all SCSI disk drives can have up to 15 disk pairs, however, the last 8 disk pairs (MHD 16
through MHD 31) can only be configured as Option 1 disk pairs.
Table 9-1 shows the number of disk pairs required by each base disk configuration, and the maximum number of
optional disk pairs supported by each base configuration.
Table 9-1
Required - Optional Disk Pairs Per Base Disk Configuration
SOFTWARE
BASE DISK CONFIGURATION
RELEASE
1010
a
66
63
5E9(1)
NA
2 - 13
2 - 13
5E9(2)
NA
2 - 13
2 - 13
5E10
2 - 5
2 - 13
b
2 - 13
b
5E11
2 - 5
2 - 13
b
NA
5E12
2 - 5
NA
NA
Notes:
a.
Available only in offices having a 3B21D processor prior to the 5E12 release.
b.
Available only in offices with all SCSI disk drives.
Table 9-2 shows the optional disk configuration for 322MB and 600MB disk drives for software releases 5E9
through 5E11, given in percentages of ODD and AMA. Table 9-3 shows the disk configurations for 1GB optional
disks for software releases 5E10 and later in offices running on the 3B21 processor. In 5E12, 1GB disks are used in
offices running on either the 3B21 or 3B20 processor.
Table 9-2
Optional Disk Configuration
OPTION #
% SM-ODD
% AMA
1
0
100
2
25
75
3
50
50
4
75
25
5
100
0
Table 9-3
Optional 1GB Disk Configuration
OPTION #
% SM-ODD
% AMA
1
0
100
2
25
75
3
50
50
The terms growth, conversion, retrofit, and reconfiguration, as applied to the disks, are defined as follows:
235-105-210
October 1999
Copyright © 1999
Page 2
Summary of Contents for 5ESS-2000
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