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4.275 bytes |
Service Hints & Tips |
Document ID: MCGN-44BRKE |
Servers - Rebuild using ServeRAID Admin Utility fails using High ID
Applicable to: World-Wide
Source: RETAIN tip H165715
Abstract:
Rebuild using ServeRAID Admin Utility fails using High ID.
SYMPTOMS:
When you try and start a Rebuild in the ServeRAID Administration Utility (after a drive has been marked DDD and you have replaced it), you get an error that the Rebuild could not be started.
The Rebuild works OK when you perform it through the DOS ServeRAID Configuration Diskette.
PROBLEM ISOLATION AIDS:
- The system is a PC Server 704, Type 8650, any model.
- It has a ServeRAID, ServeRAID II adapter.
- Has the "Channel to Bank Mapping" setting of the ServeRAID adapters set to High IDs.
- OR -
- Any PC Server or Netfinity Server with a supported ServeRAID, ServeRAID II, or ServeRAID 3(H or L).
- Is connected to a Netfinity EXP10 or Netfinity EXP15 External DASD enclosure.
- Has the "Channel to Bank Mapping" setting of the ServeRAID adapters set to High IDs on the channels connected to the EXP10 or EXP15.
Please read the DETAILS section below for more information.
WORKAROUND:
Leave the 'Channel to Bank Mapping' set to the default of LOW IDs. This will not have any impact on the performance of the server.
DETAILS:
The problem has to do with the "Channel to Bank Mapping" in the ServeRAID configuration for ServeRAID, ServeRAID II, and ServeRAID 3(H or L). The Channel to Bank mapping is designed for use with the Type II and Type III hot swap backplanes, those backplanes found on the 320, 330, 500, 520, 720, and 3518. The default setting is Low IDs.
However, in the 704, or any system with an EXP10 or EXP15 attached externally via a ServeRAID, ServeRAID II, and ServeRAID 3(H or L) adapter, if you are using drives at High IDs and change the "Channel to Bank Mapping" setting of the ServeRAID adapters from the default setting of Low IDs to High IDs, then you can experience a situation where a Rebuild will not start using the ServeRAID Administration Utility.
The workaround is to leave the "Channel to Bank Mapping" set to the default of LOW IDs. This will not have any impact on the performance of the server.
SAS KEYWORDS:
PSY2, D/T8650, NETFINITY, UNCLASSIFIED, SERVERAID, ADMINISTRATION, UTILITY, ID, HIGH, LOW, DDD, REBUILD, CONFIGURATION, DISKETTE, CHANNEL, BANK, MAPPING
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Search Keywords |
PSY2, D/T8650, NETFINITY, UNCLASSIFIED, SERVERAID, ADMINISTRATION, UTILITY, ID, HIGH, LOW, DDD, REBUILD, CONFIGURATION, DISKETTE, CHANNEL, BANK, MAPPING | |
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Hint Category |
Retain | |
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Date Created |
20-01-99 | |
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Last Updated |
04-02-99 | |
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Revision Date |
04-02-2000 | |
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Brand |
IBM PC Server | |
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Product Family |
Netfinity 3000, Netfinity 3500, Netfinity 5000, Netfinity 5500, Netfinity 5500 M10, Netfinity 7000, Netfinity 7000 M10, PC Server 300, PC Server 310, PC Server 315, PC Server 320, PC Server 325, PC Server 330, PC Server 500, PC Server 520, PC Server 704, PC Server 720 | |
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Machine Type |
8476, 8644, 8659, 8660, 8661, 8651, 8680, 8640, 8639, 8638, 8641, 8650, 8642 | |
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Model |
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TypeModel |
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Retain Tip (if applicable) |
H165715 | |
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Reverse Doclinks |
Date last altered: A99/01/19 |