Disk Drives

When you receive your system from the manufacturer, disk drives that were ordered at the same time the system was ordered are already installed. To install additional disk drives, be sure to read Installing Additional Disk Drives and Important Considerations When Installing Disk Drives before you read Removing and Inserting a Disk Drive.

See System Specifications for information about the supported disk drives.

Understanding Disk-Drive Numbering

Storage module A and storage module B each contain six disk-drive slots, for a total of 12 per system. The slots are labeled 1 through 6 on each storage module, as shown in Figure 6.

Figure 6: Disk-Drive Slot Numbering

1 Disk-drive slot 1 4 Disk-drive slot 4
2 Disk-drive slot 2 5 Disk-drive slot 5
3 Disk-drive slot 3 6 Disk-drive slot 6

You can view information about the disk drives from Hardware Page of the ztC Endurance console​ and from your operating-system software. The physical disk-drive slot numbering corresponds to the software numbering. For example, disk-drive slot 1 corresponds to slots A/1 and B/1 in the software, disk-drive slot 2 corresponds to slots A/2 and B/2, and so on.

Installing Additional Disk Drives

Install additional disk drives in your system in the order shown in Table 5. For example, if you are adding two disks to a system that already contains disks in slots A/1 and B/1, install the two additional disks in slots A/2 and B/2, for a total of four disks in the system.

Table 5: Disk-Drive Installation Order
Number of Disks Storage Module A Storage Module B
2 Slot 1 Slot 1
4 Slots 1, 2 Slots 1, 2
6 Slots 1, 2, 3 Slots 1, 2, 3
8 Slots 1, 2, 3, 4 Slots 1, 2, 3, 4
10 Slots 1, 2, 3, 4, 5 Slots 1, 2, 3, 4, 5
12 Slots 1, 2, 3, 4, 5, 6 Slots 1, 2, 3, 4, 5, 6

Important Considerations When Installing Disk Drives

Before you install disk drives, consider the following:

  • The boot drive must be installed in slot 1.

  • A storage module can contain different disk-drive models. However, you must install identical disk-drive models in matching storage module A and B slots. For instance, if you install a 1.6 TB disk drive in slot 1 of storage module A, you must install a 1.6 TB disk drive in slot 1 of storage module B.

  • Make sure all disk drives are correctly inserted as described in To insert a disk drive.

Related Topics