onstat -g glo output

Can somebody explain what exaclty some of those numbers mean? Here is the listing: =>onstat -g ioq Informix Dynamic Server Version 7.31.UC2A -- On-Line -- Up 04:48:47 -- 162720 Kbytes AIO I/O queues: q name/id len maxlen totalops dskread dskwrite dskcopy adt 0 0 0 0 0 0 0 msc 0 0 1 1422 0 0 0 aio 0 0 56 113 8 2 0 pio 0 0 1 1172 0 1172 0 lio 0 0 1 4867 0 4867 0 gfd 3 0 13 2567 2379 188 0 gfd 4 0 16 17605 16836 769 0 gfd 5 0 16 3455 2528 927 0 ....... gfd 30 0 1 2 2 0 0 gfd 31 0 1 2 2 0 0 What does gfd stand for ? Also what does len, max len and totalops stand for? Does a maxlen of 56 means that that is what longest queue was for that vp. I seem to have 56 aio processes running judging by output of onstat -g glo. The documentation says to look at this output todetermine if the number or aio requests waiting is growing. How do I exaclty get that out of continous running of this command?

Internally we use the gfd (Global file descriptor) instead of simply fd for each of the chunks. This is because the global file descriptor is common for each of the vps while the local file descriptor would not. The maxlen is the maximum length of the queue of outstanding requests for the queue.the aio queue maxlen of 56 means that you had at least 56 generalized outstanding requests to be done by the aiovp, possibably during startup when reading the config files and such. Notice that the total number of operations was only 113. That is an indication on just how much slower aoivp work can be. I'm guessing that your first chunks include your logging devices. That's probably why the activity on them appear to be higher than the later. Paul Jazwierski wrote: > Can somebody explain what exaclty some of those numbers mean? > Here is the listing: > =>onstat -g ioq > > Informix Dynamic Server Version 7.31.UC2A -- On-Line -- Up 04:48:47 -- > 162720 Kbytes > > AIO I/O queues: > > q name/id len maxlen totalops dskread dskwrite dskcopy > > adt 0 0 0 0 0 0 0 > msc 0 0 1 1422 0 0 0 > aio 0 0 56 113 8 2 0 > pio 0 0 1 1172 0 1172 0 > lio 0 0 1 4867 0 4867 0 > gfd 3 0 13 2567 2379 188 0 > gfd 4 0 16 17605 16836 769 0 > gfd 5 0 16 3455 2528 927 0 > ....... > gfd 30 0 1 2 2 0 0 > gfd 31 0 1 2 2 0 0 > > What does gfd stand for ? Also what does len, max len and totalops stand > > for? Does a maxlen of 56 means that that is what longest queue was for > that vp. I seem to have 56 aio processes running judging by output of > onstat -g glo. The documentation says to look at this output to> determine if the number or aio requests waiting is growing. How do I > exaclty get that out of continous running of this command? -- Madison Pruet =========================================== Enterprise Replication Product Developement Dallas, Texas Informix Software ===========================================