Short, but interesting. It is possible to end up with hidden snapshots on your Nimble arrays making you scratch your head wondering why the array hit its maximum number of snapshot while seemingly just having a few. From Nimble support:The reason why the snapshots were not cleaned up, is that individual snapshots were deleted, hidden … Continue reading Hidden snapshots?
Thanks to Ryan Baker for writing an in-depth explanation of this issue.vVols use sub-LUNs with the Protocol Endpoint being the regular disk device which the ESXi host see. A problem arises when QoS is added into the mix.When a VM hits its QoS limit the array with start throttling the IOs, as it should, but … Continue reading vVols and QoS issue
I was hoping my next post on this topic would be more joyful, but no such luck. Currently using 184.108.40.206 and it helps some on replication lag, but the main problem with leftover snapshots from vCenter triggered from backup software is still there and no quick fix in sight. vCenter tells the array to delete … Continue reading Quick update on vVol replication and backup
This has been a question I asked several vendors and HPE/Nimble over the last year and have been getting mixed answers for what to install in ESXi hosts. Starting with NIC/CNA vendors. One of them claimed that no one does iSCSI offloading anymore and that is why their 10/25 cards don't have iSCSI offloading.A different … Continue reading Software or hardware iSCSI?
In light of my last post I was hoping my next post would be about all the issues being resolved, but sadly we are not quite there yet. ETA for it is in NimbleOS 5.3.x and due about in 1-2 months. Also stepped into a couple of VMware bugs over the last few months. When … Continue reading More VMware vVol woes
I’ve had some cases with Nimble support over the last few months. Handling of vCenter snapshots have been changed in 5.1.x and support has been surprised that we both replicate and do backups of our VMs. After upgrading to 5.1.4 we noticed the number of vvol-snapcoll* snapshots increasing on our arrays. Both upstream and downstream … Continue reading Replication *and* backup with VMware vVols?
After finishing the beta program of the new Primera, HPE asked me if I could be a guest on a podcast. I have to admit I wasn't fully comfortable with it, but it seemed like an interesting thing to do. Both for Intility where I work and for me personally. The podcast is now up … Continue reading My first time on a podcast
Apparently most people don't use VLAN tagging on the Nimble array. For me after many years with ESXi and using VLAN tagging there to have lots of VLANs(customers) share the infrastructure, being cloud and all. So it felt quite natural to have both the management and data traffic share the physical ports, just using different … Continue reading Nimble VLAN tagging issue
Again I was lucky enough to attend the Global Partner Summit and Discover events last month, and also made it to the Executive Briefing Center in San Jose the week after. Some of the big announcements were the new storage array Primera, https://www.datacenterknowledge.com/storage/hpe-designs-primera-storage-system-nvme-scratch and also Nimble dHCI is very exciting for me. Mark Bingham who … Continue reading HPE Discover & Executive Briefing Center
HPE Norway had their yearly technology event earlier this month, including their Partner awards. To my surprise I was awarded with their Technologist of the year!