RH5885 V2 RAID controller cards

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The server supports RAID levels of 0, 1, 10, 5, 50, 6, and 60. It provides the 1 GB cache and supports battery protection and capacitor protection for the cache. In addition, the server supports RAID state migration, RAID configuration memory, self-diagnosis, and web-based configuration.

The MegaRAID? SAS 9265-8i (with 1 GB cache) or MegaRAID? SAS 9270-8i (with 1 GB cache) SAS RAID controller card is used, protecting user configurations.

The server supports a RAID controller card connected to the standard PCIe port on the mainboard. No external PCIe slot is occupied, ensuring high scalability.

If no RAID controller card is configured for a 4-socket RH5885 V2, only hard disks 0 and 1 on the left of the front panel and the additional two hard disks on the rear panel are available.

If the master node and slave node of an 8-socket RH5885 V2 each is configured with one RAID controller card, hard disks can be evenly installed in the master node and slave node, or one more hard disk can be installed in the master node. You are advised to install hard disks according to hard disk slot sequence.

If only one RAID controller card is required, the RAID controller card must be installed in the master node, and hard disks cannot be installed in the slave node.

For details, see the Huawei Server Compatibility Checker at http://support.huawei.com/onlinetoolsweb/ftca/en.

Other related questions:
Difference between the RH5885 V2, RH5885 V3, and RH5885H V3
Visit http://support.huawei.com/huaweiconnect/enterprise/thread-230857.html.

Differences between the 4-socket RH5885 V2 and 8-socket RH5885 V2
An 8-socket RH5885 V2 server is made up of two 4-socket RH5885 V2 servers connected through four QPI cables. One of the 4-socket RH5885 V2 servers serves as the master node and the other as the slave node. Hardware differences: ? Rear I/O module: For the 4-socket server, the rear I/O module can be configured with two hard disks and the QPI cables cannot be connected. For the 8-socket server, the rear I/O module cannot be configured with two hard disks and the QPI cables are required. ? Hard disk quantity: 10 (4-socket server); 16 (8-socket server) ? CPU configuration: The 8-socket server must be configured with all CPUs and the 4-socket server can be configured with two or four CPUs. ? DIMM configuration: For the 4-socket server, DIMMs must be symmetrically installed on the memory risers. For the 8-socket server, apart from the symmetry requirements, the DIMMs must be installed on two nodes and the DIMM configuration must be the same on the two memory risers. ? RAID configuration: The 8-socket server requires only one RAID controller card, which must be installed on the master node. Software differences: ? The slave node of the 8-socket server has no BIOS. Therefore, no BIOS information is displayed on iMana. ? The power button on the front panel of the slave node of the 8-socket server is available, but there is no related power control page on the iMana WebUI. ? The iMana of the slave node of the 8-socket server does not provide black box, power-on strategy, system start strategy, and serial port switchover functions.

RAID controller card
For details about RAID controller cards supported by Huawei servers, enter a product model + RAID controller card; for example, RH2288 V3 RAID controller card.

Querying the server RAID controller card model
Log in to iMana and query the board ID. Then, find the RAID controller model based on the board ID at http: //support.huawei.com/ecommunity/bbs/10239808.html

Necessity of configuring RAID arrays for a RAID controller card
If the LSISAS1078, LSISAS2208, or LSISAS3108 RAID controller card is used, the disks can be recognized by the system only when they are in RAID arrays. If the LSISAS1068, LSISAS2308, or LSISAS3008 RAID controller card is used, the disks can be used as individual disks for OS installation, if they are not in RAID arrays.

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