I5Admin
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Proper steps for replacing FC with SATA drives without rebooting

We currently have an EMC Clariion CX3-20 that we outgrew. We bought this system since 2005 and now we're capped out. We are being forced to swap the 500gb FC drives with 1TB SATA drives to double up our storage. I ran into a bind where i unbinded LUNS on our second enclosure from the bottom up and getting them ready to swap out the drives. I couldn't replace the entire enclosure since it would break the daisy chain, so i tried swapping drives but i've been told that the system won't recognize the drives until i reboot the whole system. This is running our virtual cluster, main production file server and Exchange 2007 cluster. Are there any other options i may have? if not, what are the correct steps for doing so. Keep in mind that i had already swapped some drives, can i put the old drives back in the enclosure and would it recognize them? Please help.

Thanks.

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dynamox
6 Thallium

Re: Proper steps for replacing FC with SATA drives without rebooting

so you have emptied the entire enclosure ? Does your system meet minimum flare version to support these drives ?

https://support.emc.com/docu32282_CX3-UltraScale-Series-Storage-Systems-Disk-and-FLARE-OE-Matrix.pdf...

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bhalilov1
2 Iron

Re: Proper steps for replacing FC with SATA drives without rebooting

I have swapped drives on my CX4s with no problems no reboot required. You cannot have SATA and FC in the same DAE.

I5Admin
1 Nickel

Re: Proper steps for replacing FC with SATA drives without rebooting

Thanks for your response Dynamox. To answer your question, yes.. I have removed all the FC hard drives and swapped them out with SATA drives. Before I did that I went ahead and freed up the enclosure which had those drives by unbinding the LUNS, deleting the Storage group and swapping them with the SATA. These drives are part of Enclosure 1/Bus 0. Just checked and the Flare revision is 3.22.20.5.508 and to confirm its a CX3-20 system. We also have 4 other enclosures with SATAII drives. Let me know your suggestions.

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I5Admin
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Re: Proper steps for replacing FC with SATA drives without rebooting

Thank you for your response. I am not mixing drives in the enclosure. As I pulled all FC and swapped them with SATAII drives; however, they are not being recognized by the system. I am trying to find an alternative to rebooting the whole system. Just wondering what my options are?

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dynamox
6 Thallium

Re: Proper steps for replacing FC with SATA drives without rebooting

so what happens today when you pop a drive in, it's not recognized ? I remember there was a restriction in terms of bus speed, if you were going to add a DAE that was only 2G capable, then every single enclosure on that bus had to be changed to 2G and that required SP reboot.

I5Admin
1 Nickel

Re: Proper steps for replacing FC with SATA drives without rebooting

Well I didn't actually run into this situation until now. Before we capped out at 8 enclosures (120 disks) I was just adding enclosures to the same bus and daisy chaining them together. The original shelf unit CX3-20 came with only 3 enclosures. All on Bus0/Enclosure1 and so on. My steps for adding additional one were...mounted enclosure, added all the drives (which we were going with SATA "much cheaper", per upper management), then changing the dip setting in the back of the unit to the next number in the order..example (Bus0/enclosure1, Bus0/enclosure2 and so on, then I would daisy chain them with rest. Not until we started outgrowing the storage and instead of investing in something newer or better we want to utilize what we have by swapping all the enclosures with 500gb and replacing them with 1TB SATA drives. Hope this sheds a bit more light. Thanks for taking the time.

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dynamox
6 Thallium

Re: Proper steps for replacing FC with SATA drives without rebooting

what is the part number of the drive and the DAE in question ?

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I5Admin
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Re: Proper steps for replacing FC with SATA drives without rebooting

The DAE is a DAE3P and the part number for the drive is EMC PN#005049542 / SN#FC300133350989 520 BPS. photo 1.JPG.jpg

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dynamox
6 Thallium

Re: Proper steps for replacing FC with SATA drives without rebooting

thanks, do you have the part # of the FC drives you removed ?

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