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June 25th, 2010 09:00

MAX # of DA write pending slots

first of all is this referring to cache slots allocated to disk directors?

the symcfg output on both of our DMX 1000 shows 0 allocated for DA write pending slots,

would this be considered a normal config?

thanks

1.3K Posts

June 25th, 2010 11:00

First, cache is never pre allocated, unless you use Perma Cache.  There are however limits to WP tracks on volumes and system.  At one point in time there was also a WP limit per DA, but even when that was in place, it was rarely invoked. 

2 Intern

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1.3K Posts

June 26th, 2010 02:00

what is that Perma Cache here?

1.3K Posts

June 26th, 2010 03:00

Perma Cache is a feature where you can reserve cache space for specific address ranges of a given volume.  Then that space in cache cannot be used by any other volume.  It does not change WP limits however.

5 Practitioner

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274.2K Posts

December 8th, 2010 11:00

The symcfg list -v output shows Max # of DA Write Pending Slots to be a value of zero. This is an issue with Solutions Enabler/microcode defect. Upgraded from Solutions Enabler 6.5. This parameter is obsolete and will be removed in a future version of Solutions Enabler. If using Ucode 5773 and below, Problem will be corrected with Solutions Enabler 7.2.0 and up. As a workaround, EMC Engineering recommends using "Max # of System Write Pending Slots" instead.

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