I have a customer who complains of several problems on PCs that have Outlook 2010 with kerio outlook connector koff offline version 220.127.116.1100 .
Outlook becomes slow and unresponsive . the only solution is to recreate the profile but after a few weeks the problem returns . some help ?
KOFF creates a offline cache on the local pc to store the mails. Check with resource monitor if the hdd gets maxed out if he uses outlook.
1. Let them clean up their incoming mail folder. Make a subdir like archive/years and let them move the mails in the specific folders. 15k+ mails in the incoming folder create a lot of IO.
2. Check if the filesystem is NTFS/EXT4 and not FAT or something like that
3. Delete the Kerio Cache folder, chkdsk and defrag the hdd, do a daily/weekly defrag service and recreate the cache again.
4. Upgrade the hardware if needed - no fast CPU needed, but a 2,5" HDD or under <2/4 GB RAM should change. They should use 3,5" SATA HDD's with 7200 s/min at least or even a ssd. You can put the cache on a SSD, any cheap one with 64 GB space is faster then any HDD for those random IO. I use that on our RDS - the SAS Raid would die if all 30 ppl access the mails. That's why the cache is on a SSD - runs smooth.
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