Compaq HSG80 - StorageWorks RAID Array Controller Dokumentacja Pobierz pdf (Strona 61)

100

101

2–17

Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide

Failed Less than

50%

charged

Data loss: No

Cache policy: Both controllers support

write-through caching only.

Failover: In transparent failover, all

units failover to controller B and

operate normally.

In multiple-bus failover with host-

assist, only those units that use write-

back caching, such as RAIDsets and

mirrorsets, failover to controller B.

In single configurations, the controller

only provides write-through caching to

its units.

Data loss: No

Cache policy: Both controllers

support write-through caching

only.

Failover: No

Failed Failed Data loss: No

Cache policy: Both controllers support

write-through caching only.

Failover: No. RAIDsets and mirrorsets

become inoperative. Other units that

use write-back caching operate with

write-through caching only.

Data loss: No

Cache policy: Both controllers

support write-through caching

only.

Failover: No. RAIDsets and

mirrorsets become inoperative.

Other units that use write-back

caching operate with write-through

caching only.

Table 2–3. Resulting Cache Policies and ECB Status (Continued)

ECB Status Cache Policy

Cache A Cache B Unmirrored Cache Mirrored Cache

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 395 396

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Compaq HSG80 - StorageWorks RAID Array Controller Dokumentacja Strona 61

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