2010年3月23日 · If this LUN is accessed by an ALUA host (Failover Mode is set to 4), and I/O is sent to the SP that does not currently own the LUN, this would cause I/O redirection. In such a situation, the array based on how many I/Os (threshold of 64000 +/- I/Os) a LUN processes on each SP will change the ownership of the LUN.

2018年3月15日 · The aggregate/volume is basically assigned to one of them, which will be the ALUA optimized path. If data comes in on the other controllers interface, it will route the data via the cluster interconnect through the "correct" controller. Yes, it works in a sense as active/active, but utilising ALUA for the optimized path is preferred.

2019年11月28日 · "If your MD Series RAID storage array supports Asymmetric Logical Unit Access (ALUA), active-active throughput allows I/O to pass from a RAID controller module to a virtual disk that is not owned by the RAID controller. Without ALUA, the host multipath driver is required to send data requests targeted to a specific virtual disk to the owning ...

2021年2月21日 · When upgrading the Storage Center OS to version 6.6 or later, ESXi hosts will detect the volumes as being ALUA capable and automatically switch the SATP for each of the volumes. Any hosts that previously had the Path Selection Policy set to Round Robin or Fixed will automatically change to Most Recently Used.

2010年8月7日 · This can occur for some time before the original SP's LUN is trespassed to the peer, because the ALUA path in 'not-optimal'. It uses more storage system resources and has a longer response time per I/O. ALUA is described in the EMC CLARiiON Storage System Fundamentals for Performance and Availability whitepaper in the Availability section. This ...

2013年4月16日 · 当ALUA开启后，FIX模式下是ESXi根据算法得出最优化路径，这个路径一般是所访问LUN的Owner SP所在的端口。 并不是手段选择一条路径。 不是所有存储产品在配置ALUA后，都推荐使用RR，比如CX4跟Symmetrix就不一样。

2024年4月29日 · Posted by u/Mrsredmonroe - 1 vote and no comments

2010年1月30日 · Correct Aran, ALUA is supported on release 26 CX/CX3 series array but not with MPIO. Powerpath/VE is needed for ALUA on CX/CX3 series arrays. Jason, Take a look at the table on pg24 of the attached doc.

2023年5月25日 · I use Alua when I need money instant lol. The most I’ve ever made in a day is $140. It’s just sexting but they can buy pictures too and subscribe to your pvt feed. There is internal traffic but it’s not great. I make around $10-20 a day now. It might work better if you promote it but I don’t 💖

2013年10月31日 · ESXi is ALUA aware, so configure fail mode 4 in all cases to the initiators. For SATP, please note only VMW_SATP_ALUA_CX supports ALUA. For PSP, activate multi paths with Round Robin policy. Please mark my answers as correct/helpful answer if it helps.