We use the growth limit setting for fencing AO SSD tiers, I think this is what you are asking:
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AO_SSD_CPG_Max.jpg [ 227.76 KiB | Viewed 13156 times ]
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| 3PAR SSD tier at 90% capacity https://3parug.com/viewtopic.php?f=18&t=2981 |
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| Author: | stupidgrin [ Tue Sep 11, 2018 3:15 am ] |
| Post subject: | 3PAR SSD tier at 90% capacity |
Hi, I currently have a 3par 9450 which has a SSD tier at 90% capacity. There is AO on the array and I don`t have any issues with performance. My concern is will AO still move busy regions into the SSD tier regardless of capacity till eventually its fills to 100% |
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| Author: | RitonLaBevue [ Tue Sep 11, 2018 4:26 am ] |
| Post subject: | Re: 3PAR SSD tier at 90% capacity |
Are you sure you are talking of 9450 ? it's an AFA array... You have raid 1 and raid 6 CPGs maybe ?? To answer your question : yes. You can set alert warning on the CPG to block AO moving data to your tier 0. |
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| Author: | stupidgrin [ Tue Sep 11, 2018 5:54 am ] |
| Post subject: | Re: 3PAR SSD tier at 90% capacity |
Yes... sorry it a 7400. We also have 9450 which is nothing to do with this question. |
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| Author: | BryanW [ Tue Sep 18, 2018 3:04 pm ] |
| Post subject: | Re: 3PAR SSD tier at 90% capacity |
We use the growth limit setting for fencing AO SSD tiers, I think this is what you are asking: Attachment: AO_SSD_CPG_Max.jpg [ 227.76 KiB | Viewed 13156 times ] |
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| Author: | MammaGutt [ Wed Sep 19, 2018 2:29 am ] |
| Post subject: | Re: 3PAR SSD tier at 90% capacity |
Growth warning would also enough for AO. |
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