Installation guide

s/390 Hardware Requirements
11
Stand-Alone Database Embedded Database
12 GB storage for the database repository, in the
/rhnsat partition (local storage only)
Strongly recommended - a SCSI drive connected
to a level 5 RAID
Separate partition (or better, a separate set of
physical disks) for storing backups. This can be
any directory specifiable at backup time.
Beyond the space needed for Red Hat Enterprise Linux installation and /var/satellite/, you
also need space for cache files generated when using Satellite, which get regenerated, as needed,
if deleted. These cache files are stored within /var/cache/rhn, and the storage needs of this
directory will vary greatly depending on the following factors:
• how many channels you sync or import from RHN or Channel dumps
• how many custom packages and channels you have
• Whether or not you are using Inter-Satellite Sync
As a guide, provide at least 10 GB of space for /var/cache/rhn/ on a Satellite server. For very
large Satellite deployments with numerous channels, packages, and using Inter Satellite Sync, your
usage could grow to as much as 100 GB of space for cache files in /var/cache/rhn.
The following hardware configuration is required for the Stand-Alone Database:
• Two processors
• 2 GB of memory
See Section 2.3, “Database Requirements” for instructions on estimating the tablespace of the
database and setting its environment variables.
Keep in mind, the frequency with which client systems connect to the Satellite is directly related to
load on the Apache Web server and the database. Reducing the default interval of four hours (or
240 minutes) as set in the /etc/sysconfig/rhn/rhnsd configuration file of the client systems
significantly increases the load on those components.
2.2.2. s/390 Hardware Requirements
For the s/390 mainframe platform, the following table shows the requirements and recommended
configurations for both standalone and embedded databases.
Table 2.3. Stand-Alone Database and Embedded Database Satellite Hardware Requirements for
s/390 Platform
Stand-Alone Database Embedded Database
Required - 1 IFL, either in LPAR configuration or
shared through z/VM
Required - 1 IFL, either in LPAR configuration or
shared through z/VM
Recommended - 2+ IFLs on z9 or earlier, 1+ IFL
on z10
Recommended - 2+ IFLs on z9 or earlier, 1+ IFL
on z10
Required - 2 GB of storage (memory) Required - 2 GB of storage (memory)
Recommended - 8 GB of memory Recommended - 8 GB of memory
Required - 1 GB swap on ECKD DASD Required - 1 GB swap on ECKD DASD