"MCCORE::BOLTHOUSE@ti-eg.CSNET".UUCP (04/03/87)
Concerning Mark Cooperstein's question of whether to use /NOCRC on
MicroVAX IIs with a TK50 as the BACKUP output medium, I recall a session at
the Dallas DECUS with DEC Storage Group personnel discussing 'how fast
our tape drives go'. They felt that since the TK50 handles CRC in hardware,
/NOCRC *was* justified. Those who wrote BACKUP (in another session) disagreed.
Personally, I would use /NOCRC since the performance gain is so great I could
run a /VERIFY on every tape written in less time (for /IMAGE backups, for
example). For non-image backups, your potential data loss is much less, so
the risk isn't as high.
Of course, my employer is more paranoid than I am, so we *always* use /CRC.
david l. bolthouse
texas instruments defense electronics information systems VAX system support
mckinney, texas
ma bell: 214.952.2059
csnet: bolthouse%mccore@ti-eg
arpa: bolthouse%mccore@ti-eg.csnet
disclaimer: my employer runs 'two or three' VAXes. if we were to lose data,
we would be in deep trouble. if i lose data, that's not such a big deal.
Fortune: 'you pays your money and you takes your chances' -- Las Vegas high
school dropout.