ESXi 6.7 U1 fixes: APD and VMCP is not triggered even when no paths can service I/Os

It has been over two years since I blogged about APD handling bug which I discovered, during partial storage outage in my environment. All path down (APD) handling and VMware Component Protection (VMCP) is not working when you have paths physically connected, but they are not able to serve any… Continue reading

Update of Cloud Storage Gateways category on WhatMatrix

Cloud Storage Gateways category on WhatMatrix has been updated with the latest product’s details. 13 new products have been added and in total 49 products from 8 main Cloud Storage Gateway vendors are in the comparison. There is also one significant change in the comparison.  Each product now shows whether… Continue reading

Cloud Storage Gateways Comparison on WhatMatrix

After many months of really hard work of the entire WhatMatrix team it’s my pleasure to announce that Open Beta is live and site is accessible for everybody. What you can expect? Comparison website where you can select and compare multiple  products and it’s features. As of today there are… Continue reading

Updated: Storage disconnects when using VAAI ATS on vSphere 5.5 Update2 and vSphere 6.0

alert

IBM has released a flash alert regarding a new behavior introduced in vSphere 5.5 Update2 and vSphere 6.0 where VAAI ATS (Atomic Test and Set or in the other words Hardware accelerated locking) is used for heartbeat I/O. http://www-01.ibm.com/support/docview.wss?uid=ssg1S1005201 According to IBM: Due to the low timeout value for heartbeat… Continue reading