Chapter 2 HPSS PlanningHPSS Installation Guide September 2002 129Release 4.5, Revision 2BFS/Disk Bitfile Segments (bfdisksegment.#) = Avg. Storage Segments Per Disk VV * Total DiskVirtual VolumesBFS/Storage Segment Checkpoint (bfsssegchkpt.#) = Max BFS Storage Segment CheckpointsBFS/Tape Bitfile Segments (bftapesegment.#) = Avg Bitfile Segments Per Tape Bitfile * (Max TotalBitfiles + (Max Total Bitfiles * (Avg Copies Per Bitfile - 1) * Percent of Extra Copies Stored on Tape))BFS/Unlink Records (bfssunlink.#) = Max Queued BFS Storage Segment UnlinksMPS/Bitfile Migration Records (bfmigrrec.#) = Max Disk Bitfiles Queued for MigrationMPS/Bitfile Purge Records (bfpurgerec.#) = Max Disk Bitfiles Queued for PurgingMPS/Checkpoints (mpchkpt.#) = 2 * Total Storage ClassesNS/ACL Extensions (nsacls.#) = [Computed] NS Objects * Avg. Object ACL Entries Per NameSpace Object + (Name Space Directory Objects * Avg. Initial Container and Initial Object ACLEntries Per Name Space Directory Object)NS/Fileset Attributes (nsfilesetattrs.#) = Filesets Per Name ServerNS/Objects (nsobjects.#) = Max Total Bitfiles * Avg Name Space Objects Per BitfileNS/Text Extensions (nstext.#) = [Computed] NS Objects * Avg Text Overflows Per Name SpaceObjectSS/Disk Maps (storagemapdisk.#) = Total Disk Virtual VolumesSS/Disk Physical Volumes (sspvdisk.#) = Total Disk Physical VolumesSS/Disk Storage Segments (storagesegdisk.#) = Avg Storage Segments Per Disk VV * Total DiskVirtual VolumesSS/Disk Virtual Volumes (vvdisk.#) = Total Disk Virtual VolumesSS/Tape Maps (storagemaptape.#) = SS Tape Virtual Volumes + Total Storage ClassesSS/Tape Physical Volumes (sspvtape.#) = Total PVR #1 Tape Cartridges + Total PVR #2 TapeCartridges + Total PVR #3 Tape CartridgesSS/Tape Storage Segments (storagesegtape.#) = Avg Storage Segments Per Tape Bitfile * (Max TotalBitfiles + (Max Total Bitfiles * (Avg Copies Per Bitfile - 1) * Percent of Extra Copies Stored on Tape))SS/Tape Virtual Volumes (vvtape.#) = Total Tape Virtual VolumesRecord Count Override—This column allows the computed Total Records value to be overridden, ifdesired. The value entered in this column must be greater than zero (0) in order to be used.Normally this column should remain blank.Primary Data/Index—This section is composed of two columns. The first column, labeled Size (MBs),shows the computed disk space requirement for the number of Total Records computed (or theRecord Count Override, if set). This takes into account the actual size of the data in each record as wellas the primary index. The second column, labeled SFS Vol #, specifies which logical SFS data
