On Mon, May 05, 2008 at 01:14:41PM -0400, Dave Diller wrote: > This is an FYI, and a separate issue form Pekka's discovery that these > faster cards can hog CPU when being written. > > It turns out that some SanDisk Extreme III 1G cards are Juniper > friendly, and others are not. We purchased three at the same time > from the same CompUSA. Of the three, two do not work and the third > one is fine. The symptom is that the non-functional ones time out and > you can't install anything on them (but 6509's are fine with them, so > they'll be redeployed there ;-):
I believe the distinction is that some (usually modern high-speed units, or especially cheap regular units) CF cards do not support PIO mode, and assume that anyone in their right mind buying a 1G CF is going to plug it into a device which supports UDMA, and high speed UDMA at that. Unfortunately neither old Juniper RE's nor Cisco SUP720s support UDMA (which, incidentally, contributes about 2 minutes to a 6509's slow-as-hell boot time running modern code) on their ATA CF controllers. You're best off getting a regular classic SanDisk with PIO support, there are no benefits to be had by putting nice CFs into old and crappy hosts. The ironic thing is that I think the CONTROLLER on the old Juniper RE's supports UDMA, but there aren't traces for it on the CF adapter. :) -- Richard A Steenbergen <[EMAIL PROTECTED]> http://www.e-gerbil.net/ras GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC) _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp