Specifications

System Requirements
SPECTRUM Software Release Notes Page 32
Disk Requirements (Disk Striping)
For optimum performance, Aprisma recommends running SPECTRUM on
systems with multiple ultra-wide SCSI or EIDE drives using RAID disk
striping technologies. SPECTRUM requires high-performance disk I/O
optimized for small random writes. Please contact your hardware vendor
for an appropriate RAID solution.
S
OLARIS
The REQUIRED configuration is to install SPECTRUM on a separate disk
other than the operating system and install DDM on a separate disk (on a
separate disk away from the rest of the SPECTRUM install) for a total of 3
disks*.
A BETTER configuration is to install SPECTRUM (with DDM) on a 3-disk
stripe set. The stripe set can be set up by either using the Solstice Disk
Suite software package or through the use of a raid controller (RAID 0).
The BEST solution for disk performance is to install SPECTRUM and
DDM each on their own 3-disk stripe set (a combination of the above two
solutions).
To summarize the above Solaris scenarios:
To move the DDM directory onto to a disk separate from Solaris, perform
the following actions:
OS SPECTRUM DDM
Required disk1 disk2 disk3
Better disk1
Best disk1 3 disk stripe set 3 disk stripe set
3 disk stripe set