Why does it take so long to mount & dismount...

[Checkpoint Technologies]

...large volumes? I have a 486 PC, running Interactive Unix 2.2, I have
an Adaptec 1542 SCSI host adapter, a 170 Meg Quantum HD with my root and
/usr file systems, and I just added an old Priam 320 Meg HD I received.
I left 20 Meg for DOS, and made the rest into two 150-meg partitions.
My startup and shutdown time has increased by about two minutes
(subjectively; I hadn't timed it before), and it's because it takes
about a minute for each of my new partitions.  So, why is this? And, is
there anything I can do about it?  Thanks in advance.

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