Comware

what's the difference between a HP ProCurve Gigabit-SX-LC Mini-GBIC and a Finisar DTR-1319-7D PN: J4859A to be used in a HP ProCurve 2910al-24G Ethernet Switch. (j9145a#aba)

Physically there's probably not much difference but the Finisar mGBIC won't work on the newer firmware with the HP switches as it's not a HP original optic.

Are thare updated drivers available to use the Finisar DTR-1319-7D PN: J4859A in a HP ProCurve 2910al-24G Ethernet Switch. (j9145a#aba)

No, HP switches only support HP optics.

Those Mini-GBICs have a different coding for some manufacturers. Some manufacturers (HP, Cisco,...) check that coding. If it is the wrong one their switches will tell you that there´s a failure. There are other manufactuerer´s that don´t check that coding. So you can use e.g. those HP or Cisco coded Mini-GBICs and put them into those switches.

I don´t how hard will be for an end user to change that coding afterwards, but I haven´t seen any device that does so. Perhaps someone knows?