ak_camguy 0 Posted November 6, 2013 Let me be really clear.... I am not bashing EMC!! However, EMC is known for its bad disk latency issues. We use EMC where I work and it's a great product for certain applications/use. However, when you hammer the disk array I/O the controllers just can't keep up. At least from my experience. The only thing we have found to help was.... Make sure the disk is dedicated storage and not shared. We run about 500 VM's on our storage controller but we use dedicated disk and have switched from EMC to Netapp filers using NFS. With de-duplication on Netapp we haven't had a hiccup in 7 years. Our other facility in Seattle uses EMC and runs into disk I/O issues all the time. They have just recently purchased a SSD storage array due to a similiar problem you are having. It isn't cheap but it is a big improvement. Share this post Link to post Share on other sites
PokerMunkee 0 Posted November 6, 2013 Our 3xLogic servers have a SSD for OS (MS Desktop SQL runs on this) and 8x 3TB drives in RAID10. They provide a nifty disk performance utility where you can setup how many cameras, bitrate, fps, etc and it will tell you if your disk i/o is sufficient or not. Lemme know if you guys want it, I'll host it somewhere. Share this post Link to post Share on other sites
skomo 0 Posted November 6, 2013 i remember in the milestone training, that the storage needs to be formatted with a certain block size, i cant remember what that was, but ill check. cheers Share this post Link to post Share on other sites
PokerMunkee 0 Posted November 6, 2013 I've seen 64k but doesn't matter IMO Share this post Link to post Share on other sites
MR2 0 Posted November 6, 2013 i remember in the milestone training, that the storage needs to be formatted with a certain block size, i cant remember what that was, but ill check. cheers I'd be keen to see what the figures recommend.... I've sent plenty of emails to Milestone support without any recommendation coming back out of them. if I split the disks into packs of two I'm not going to have enough storage (at the moment it's two arrays of 6 disks, so I have a whole 14 slots to play with) anyone think that 7200rpm 1tb's in mirrored pairs (but not striped) might be a better way to attack this without going ridiculous spending? Share this post Link to post Share on other sites
ak357 0 Posted November 6, 2013 Our 3xLogic servers have a SSD for OS (MS Desktop SQL runs on this) and 8x 3TB drives in RAID10. They provide a nifty disk performance utility where you can setup how many cameras, bitrate, fps, etc and it will tell you if your disk i/o is sufficient or not. Lemme know if you guys want it, I'll host it somewhere. Plz do provide link Thx Share this post Link to post Share on other sites
ak_camguy 0 Posted November 6, 2013 Crystal DiskInfo is a free utility and may help determine disk errors etc, if you don't have a utility already. Share this post Link to post Share on other sites
PokerMunkee 0 Posted November 6, 2013 Our 3xLogic servers have a SSD for OS (MS Desktop SQL runs on this) and 8x 3TB drives in RAID10. They provide a nifty disk performance utility where you can setup how many cameras, bitrate, fps, etc and it will tell you if your disk i/o is sufficient or not. Lemme know if you guys want it, I'll host it somewhere. Plz do provide link Thx http://blizzard.triplecrowncasinos.com/ftp/vigil-drive-test.zip Share this post Link to post Share on other sites
ak357 0 Posted November 6, 2013 http://blizzard.triplecrowncasinos.com/ftp/vigil-drive-test.zip Thanks Share this post Link to post Share on other sites
