User`s guide

RA8000/ESA12000 HSG80 Solution Software V8.5 for Sun Solaris
Page 18 387372-005 AA–RFBPE–TE
7.13 Using the “fsck” Utility on Large Storagesets
When attempting to fsck a large storageset, you may get the following error:
Cannot alloc 115667202 bytes for aclinop
The actual number is irrelevant. This error means that your system does not have
enough virtual memory to fsck a large device. This is a known problem with
fsck.
The solution is to add swap space with the swap -a command. Our testing has
shown that up to 500 MB of free memory is required to run fsck on a 120 GB
storageset.
7.14 Solaris Bootability
Using the HSG80 array controller running on ACS 8.3, Solaris bootability has
not been tested and is not supported.
7.15 Command Console LUN (CCL)
The HSG80 can provide a dedicated communications LUN (CCL). This can
simplify the installation and operation of SWCC, but it can cause some issues
under Solaris. During booting, you will get an error, “corrupt label - bad magic
number”. This is due to the fact that Solaris “sees” the CCL as a 320 MB
read-only disk. This is just a warning, and it can be ignored. You may disable the
CCL if desired, but remember that it may be used by the SWCC Agent for
communications with the controller. Make sure that you have configured another
LUN for communication before deleting the CCL.
7.16 Setting maxcontig and rotdelay for Filesystems
The overall performance of your configuration can be affected by your choice of
maxcontig and rotdelay values. Maxcontig specifies the maximum number of
contiguous blocks that will be written before inserting a rotational delay.
Rotdelay specifies the time (in milliseconds) of the rotational delay.
Our testing has show that for optimal performance with the rotdelay should
always be set to 0.