How long could a SCSI cable be?

[Ching-Ping Tseng]

In our lab there are 8 sun 3/60s each with a shoebox containing a SCSI
hard drive.  They  make  a lot of noise.  We are considering putting the
shoeboxes alltogether in a larger cooling cabinet with better noise
reduction.   The concern is how long a SCSI cable could be and where we
can get cables in specific lengt.

The machines are networked but we'd rather not to dedicate one machine
to be diskless server of others.

Thanks.