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- HPE 3PAR Adaptive Optimization configuration demystified
- 3PAR iSCSI Delayed ACK read or write performance issues
- Brocade 300 password recovery and factory reset
- vCenter Server Appliance 6.0 bug – Intermediate authentication issues – Native platform error -1765328378
- 3PAR with AO and SSDs. How much do I need?
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Author Archives: Naz Snidanko
HPE 3PAR Adaptive Optimization configuration demystified
Adaptive Optimization is disk tiering technology within 3PAR OS, which automatically moves the most frequently accessed data blocks to the fastest disks and infrequently accessed data blocks of data to slower disks. I will not try to recite official documentation … Continue reading
3PAR iSCSI Delayed ACK read or write performance issues
I’ve noticed a few people running iSCSI 3PARs with Delayed ACK enabled and experiencing latency on their datastores. Here’s what happens when you disable it (SSD backed datastore): Before and after: VMware KB about it: https://kb.vmware.com/kb/1002598 I suggest to use … Continue reading
Brocade 300 password recovery and factory reset
Let’s say you purchase a couple of 300s on the Ebay and someone forgot to reset config but you can’t get in as all default passwords got changed. Here’s what we need to do:
Posted in Random stuff
Tagged brocade 300, brocade factory reset, fabos password reset, password reset
32 Comments
vCenter Server Appliance 6.0 bug – Intermediate authentication issues – Native platform error -1765328378
Another mysterious bug from VMware – intermediate authentication failures. Symptoms: I’ve noticed some of the backup jobs were failing because Veeam failed to log in to vCenter. If you’re familiar with Veeam software – you define backup account per vCenter … Continue reading
Posted in VMware
Tagged -1765328378, authentication issue, bug, native platform error -1765328378
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3PAR with AO and SSDs. How much do I need?
Most of the people involved with storage deal on daily basis with performance and capacity monitoring. There are two metrics which everyone cares the most: size and IOPS. Of course, latency, queue depth and many more have significant impact as well. If you … Continue reading
AWS Certified Solutions Architect – Associate Exam 50% off
Amazon has amazing promotion for AWS Certified Solutions Architect Associate exams – 50% off! So here’s the catch – you will get random questions which help Amazon in future AWS exams. These “test” questions are not graded and do not … Continue reading
Posted in Random stuff
Tagged aws, AWS Certified Solutions Architect Associate, webassessor
2 Comments
3PAR 3.2.2 MU3 and Veeam B&R 9.0 Update 2 – integration bug
Latest 3PAR firmware 3.2.2 MU3 breaks SAN integration with Veeam Backup and Replication. Issue affects all versions, including version 9 Update 2. Symptoms You job will fail with “User authentication failed” error:
ESXi 5.5/6.x bug HPE CIM – /var/run/sfcb inode table of its ramdisk is full
Another bug from VMware/HPE – unfortunately we don’t have public KB available at this point. As per our conversation with VMware engineer this issue affects both ESXi 5.5 and ESXi 6.x hosts. I suspect VMware sfcb service fails to clear … Continue reading
Alert! Alerte! Achtung! Critical bug in vSphere 6
Backing up VMs in vSphere 6 can cause data loss in your backups! Earlier I wrote about critical bug with vSphere 5.5 update 3 related to backups which was absolutely unacceptable and here we go again… Here’s symptoms from VMware’s … Continue reading
3PAR WSAPI via Powershell
Earlier I’ve demonstrated how to use 3PAR CLI with Powershell. In this example I will show how to work with 3PAR’s WSAPI via Powershell and poll last time remote copy group was synchronized (i use Last Sync date from first … Continue reading
Posted in 3par, Powershell, Random stuff
Tagged 3par, 3par api, 3par powershell, powershell, wsapi
5 Comments