Hub/Switch Installation Guide

Chapter 3 System Preparation
HPSS Installation Guide September 2002 147
Release 4.5, Revision 2
3.2.2 Encina
Configure /opt/encinalocal and /opt/encinamirror such that the contents are either mirrored or
each of these two directories is stored on separate disks. Make sure these file systems are
automatically mounted at system reboot.
3.2.3 HPSS
Configure /var/hpss as a separate file system on each HPSS server node while considering the
following:
• Any node needs a minimum of 30 MB
• The node that will run the HPSS Log Daemon will need an additional 100 MB
• Any node running an HPSS NFS Daemon will need an additional 200 MB (or more,
depending on the desired size of the NFS cache) if not using separate/dedicated disks for
NFS
• Make sure this file system is automatically mounted at system reboot.
3.3 Planning for Encina SFS Servers
Plan the SFS configuration intermsofnumberofdatavolumestouse,whichmetadata fileswillbe
allocated to each data volume, the size of each data volume, the disks to be used, and mirroring
options:
• Use the metadata sizing spreadsheet mdsizing.xls to determine final amount of SFS data
volume space to configure. When completed, this spreadsheet should be added to the site
configurationinformationandnotlost. (Toobtain themetadatasizingspreadsheet,contact
your customer support representative.)
• Use multiple data volumes as opposed to one large volume
• Keep in mind that in the future as the size of HPSS grows, it may be necessary to move
certain SFS files or data volumes to different disks and/or nodes. The movement of data
volumes is easybecause standard AIXLVM toolscan be used. Splitting data volumes(i.e.,
movinganindividualSFSfiletoanotherdatavolume)ismuchmorecostlybecausetheSFS
filemustbe exported andre-imported,whichis atime-consuming task.The SFSbulk copy
featurecan be used to improvethe performance for these typesof operationsfor TX Series
4.3 and later.
• Make sure the larger SFS files are on different data volumes (e.g., tape storage segments,
NS objects, BFS bitfiles, etc.)
• An initial starting point for allocating SFS files to data volumes is as follows:
◆ Name Server metadata files
◆ Bitfile Server metadata files