Hi juergen, Thanks a lot. Yes, I was used qcow2 before. I should try to using raw instead. Let me try.
Best regards. Leo ---- Replied Message ---- | From | Leo<szz...@163.com> | | Date | 11/18/2024 22:31 | | To | users@cloudstack.apach…<users@cloudstack.apache.org> | | Cc | users@cloudstack.apach…<users@cloudstack.apache.org> | | Subject | Re: about the storage perfonmance | Hi Alex, Meanwhile, I have communicated with Dell about PowerFlex. Maybe it is more suitable for providing good performance with CloudStack for databases than NFS. As you can see, I like CloudStack and want to use it more and more in our company. Best regards. Leo ---- Replied Message ---- | From | Alex Mattioli<alex.matti...@shapeblue.com> | | Date | 11/18/2024 21:57 | | To | users@cloudstack.apache.org<users@cloudstack.apache.org> | | Subject | RE: about the storage perfonmance | Hi Leo, And what exactly are you trying to test? Which workload? Why did you choose sequential reads of 4k? How many workers did you setup? Thanks Alex -----Original Message----- From: Leo <szz...@163.com> Sent: 18 November 2024 14:32 To: users@cloudstack.apach… <users@cloudstack.apache.org> Cc: users@cloudstack.apach… <users@cloudstack.apache.org> Subject: Re: about the storage perfonmance Hi, By the ESXi test, I have installed a single ESXi on a machine. By the Cloudstack test, I used the KVM. Best regards. Leo ---- Replied Message ---- | From | Alex Mattioli<alex.matti...@shapeblue.com> | Date | 11/18/2024 | 21:16 | To | users@cloudstack.apache.org<users@cloudstack.apache.org> | | Subject | RE: about the storage perfonmance | Hi Leo, CloudStack can orchestrate VMWare, KVM and XenServer, which one of those are you using? Thanks Alex -----Original Message----- From: Leo <szz...@163.com> Sent: 18 November 2024 13:48 To: users@cloudstack.apach… <users@cloudstack.apache.org> Cc: users@cloudstack.apach… <users@cloudstack.apache.org> Subject: Re: about the storage perfonmance Hi, Tanks. "NFS on CloudStack" means using NFS as primary storage and running VMs on it. We will running PostgreSQL and apps on the cluster. Only one worker at a time. Is there something wrong with my testing methods? Best regards. Leo ---- Replied Message ---- | From | Alex Mattioli<alex.matti...@shapeblue.com> | Date | 11/18/2024 | 18:56 | To | users@cloudstack.apache.org<users@cloudstack.apache.org> | | Subject | RE: about the storage perfonmance | Hi, What do you mean by “NFS on CloudStack”? Do you mean NFS on KVM? Why are running 4K sequential for your tests? What’s the workload you are actually trying to test for? How many workers do you have setup for IOMETER? Cheers Alex From: 史洲洲 <szz...@163.com> Sent: 18 November 2024 03:23 To: users@cloudstack.apach… <users@cloudstack.apache.org> Subject: about the storage perfonmance Hi, Sorry, I need to send this mail again. This is the same question, only append the url for the images. I have tested the storage performance of my storage system using three different methods: 1. Using the NFS protocol with a 10G network, on VMware ESXi, with a 4K block size and 100% sequential read operations. Url of this image: https://s2.loli.net/2024/11/18/WFsek69I3ZBblvQ.png [cid:576a5437$1$1933d1487cb$Coremail$szz799$163.com] 2. Using the NFS protocol with a 10G network, on Cloudstack, with a 4K block size and 100% sequential read operations. Mounted with these: 'vers=4.1,nconnect=16' * Url of this image: https://s2.loli.net/2024/11/18/a2WY3gpGVA6XeCO.png<https://s2.loli.net/2024/11/18/a2WY3gpGVA6XeCO.png> [cid:50da97e1$2$1933d1487cb$Coremail$szz799$163.com] 3. Using the FC protocol with 16G , on Cloudstack, treating the LUN accessed via FC as a local disk, with a 4K block size and 100% sequential read operations. Url of this image: https://s2.loli.net/2024/11/18/WFsek69I3ZBblvQ.png [cid:5401a69f$3$1933d1487cb$Coremail$szz799$163.com] The results show : with the same storage system, the average I/O response time is best (0.32) when using NFS with VMware ESXi. The second is FC-SAN with Cloudstack (1.25), and the worst is NFS with Cloudstack. Even the NFS with ESXi is better than fc-san? I believe there may be some configurations that could improve the storage performance when using Cloudstack. I would greatly appreciate it if anyone could offer some advice or solutions to help me optimize the Cloudstack storage performance. Thank you very much for your attention. Best regards. Leo.
