Hard Disk Drive Duplexing; Available Disk Configuration - NEC Express5800 Series Maintenance Manual

Chapter 2 Configuring and Upgrading the System
1.

Hard Disk Drive Duplexing

Hard disk drive duplexing is described here.
1.1

Available Disk Configuration

All the built-in hard disks must be duplicated in this system. The built-in hard disk of the slot corresponding to the
following table creates the redundancy configuration by using the software RAID1.
Corresponding slots
Slots corresponding to the mirroring process
88

To pull out and insert the hard disk drive, wait for 30 seconds or longer after
Important
pulling out the hard disk drive before inserting it.

Use LVM after configuring RAID1 or RAID1+0. The configuration to create RAID
furthermore on the LVM logical volume is not supported. LVM provides the
advanced storage function. However, the procedure for management or recovery
in case of a failure is complex. It is recommended to use LVC only if it is
required.
slot 3
slot1
slot 0 slot 2
slot 0 slot 2
slot 1 slot 3
Corresponding slots
CPU/IO module 0 slot 0  CPU/IO module 1 slot 0
CPU/IO module 0 slot 1  CPU/IO module 1 slot 1
CPU/IO module 0 slot 2  CPU/IO module 1 slot 2
CPU/IO module 0 slot 3  CPU/IO module 1 slot 3
CPU/IO module 0 slot 4  CPU/IO module 1 slot 4
CPU/IO module 0 slot 5  CPU/IO module 1 slot 5
CPU/IO module 0 slot 6  CPU/IO module 1 slot 6
CPU/IO module 0 slot 7  CPU/IO module 1 slot 7
Express5800/R320e-E4, R320e-M4 Maintenance Guide (Linux)
slot5
slot 7
slot 4 slot 6
slot 4 slot 6
slot 5 slot 7
1. Hard Disk Drive Duplexing