ETERNUS SF Express V14.1 User's Guide

2.1 Hardware conditions

A storage system including Express requires the following hardware.

Table 2.1 Storage hardware conditions

Series name	Model name
ETERNUS DX	DX60
	DX80
	DX90
FibreCAT SX	SX60
	SX80
	SX80 iSCSI
	SX88
	SX100

Note

For FibreCAT SX Disk storage system, only monitoring is supported.

Series name

PRIMERGY

Note

PRIMERGY FT model is unsupported.

Table 2.3 Capacities required for servers on which to install Express

Type of Express	Memory requirement (Unit : MB)	Disk space requirement (Unit : MB)	Remarks
Express Manager	128	1792 + (A)	A: Repository
Express Client	256	200

Repository

Additionally, when performance management is being performed, based on the type of target (the ETERNUS DX60/DX80/DX90), the number of logical units involved, and the number of DE (Disk Enclosure), the required capacity given below becomes necessary.

(2) * (240 + (1.2 + 0.3 * number of DEs + 0.3 * (number of secured LUs + number of secured RAIDGroups[*1])) * (86400 / 60) + (95 * number of DEs) + (50 * (number of secured LUs + number of secured RAIDGroups[*1]))) / 1024 + 3 * (Number of days to collect + 12) * (10.6 + 0.07 * (86400 / performance monitoring interval (seconds) 60)) / 1024

[*1] The "number of secured RAIDGroups" is the number of RAIDGroups created from the secured Lus.

Example

When securing the performance information of 512LUs in an ETERNUS DX80, (2 * (240 + (1.2 + 0.3 * 2 + 0.3 * (512 + 64)) * (86400 / 60) + (95 * 2) + (50 * (512 + 64))) / 1024) + (3 * 2 * (10.6 + 0.07 * (86400 / 60)) / 1024) = 548.8051MB is required.

Additionally, when performance information is output using the performance information operation command, the following disk space is required, depending on the number of LUs of the ETERNUS DX60/DX80/DX90, number of DEs, number of ports that is used to collect performance information.
Each element number of installed DEs, installed CM Ports, LUs, RAIDGroups is the number mounted in the device when the command is executed.

Number of days to output 1/24 * (((0.1 + 0.4 * number of installed DEs + 0.1 * number of installed CM Ports + 0.2 * (number of LUs + number of RAIDGroups)) * (86400 / performance monitoring interval (seconds) 60)) + (0.2 + 0.6 * number of installed DEs + 0.2 * number of installed CM Ports + 0.4 * (number of LUs + number of RAIDGroups))) / 1024

See

Refer to "C.3 storageadm perfdata (Performance information operation command)".

Figure 2.1 Schematic view showing hardware conditions

Point

• Number of management for Disk storage systems

  Express is recommended to manage less than 10 Disk storage systems.

• Connecting servers and a Disk storage systems

  • FC-AL

  • Fabric

  • iSCSI

  • SAS