IBM Power Systems RDX Manual page 93

Environmental
Table 3. Operating conditions
USB Removable Disk Drive
Temperature
Relative humidity
Maximum wet bulb temperature 29.4°C non-condensing
Maximum temperature gradient 20°C per hour
Altitude
Operating system or partition requirements
If you are installing a new feature, ensure that you have the software that is required to support the new
feature and that you determine whether there are any prerequisites for this feature and attaching devices.
For information about the prerequisites, see the IBM Prerequisite website (www-912.ibm.com/e_dir/
eServerPrereq.nsf).
The media device is supported on the following versions of the operating systems:
• AIX
– AIX 7.1, or later.
– AIX 6.1
• Linux
– Red Hat Enterprise Linux Version 6, or later.
– SUSE Linux Enterprise Server 11, Service Pack 3, or later, with current maintenance updates
available from SUSE.
• IBM i
– IBM i Version 7.3, or later
– IBM i Version 7.2
– IBM i Version 7.1
Using the internal RDX removable disk drive for backup and restore
The disk drive is a back-up and restore device that can be used as an alternative to tape drives. The
removable disk drive is not a replacement for regular disk drives and cannot be used as part of a disk
array.
Note: If power is lost during a backup to the disk, the data can be compromised. Verify the data or rerun
the backup.
Using the disk drive with the AIX operating system
The AIX operating system names the drives as drive usbmsx, for example, usbms1, and usbms2. The AIX
operating system can also use the device as a raw device, for example, rusbms1 and rusbms2.
The AIX operating system uses the removable disk drive differently depending on the program that is
being used. The AIX command mksysb, builds a list of files to backup, creates a universal disk format
(UDF) file system, and puts a boot image and the root volume group on the removable disk drive. When
the mksysb process is complete, the removable disk drive can be used to boot the system. If you mount
the removable disk drive, you can display and copy files to and from the UDF file system on the removable
disk drive.
RDX docking stations, removable disk drives, and power cable, for the 9009-41A, 9009-42A, or 9223-42H 79
Operating conditions
5°C - 55°C
8% - 90% non-condensing
–300 meters (–984.25 ft) to
3048 m (10,000 ft)
Non-operating conditions
–40°C - 65°C
5% - 95% non-condensing
40°C non-condensing
20°C per hour
–300 meters (–984.25 ft) to
12,192 m (40,000 ft)