Re: Quick SAS Cable question

Supported is one thing 😊 The question is if it panics, or keeps running…. Sadly I do not have a system to test this on…

/Heino

Fra: "[email protected]" <[email protected]>
Dato: torsdag den 25. juni 2020 kl. 11.00
Til: Heino Walther <[email protected]>, "[email protected]" <[email protected]>
Emne: RE: Quick SAS Cable question

So you want to move shelf with data to different stack in the same filer, online? That was not supported officially last time I checked. Only empty shelves can be removed and reconnected to different stack.


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Sent from my Fujitsu LIFEBOOK S937
With best regards
Andrei Borzenkov
Senior System Engineer
FJ EMEIA PR FOCP RU SM FSO
[cid:[email protected]]
FUJITSU
Zemlyanoy val 9, 105064 Moscow, Russia
Tel.: +7 (495) 730 6220 ext. 2247
Mob.: +7 (916) 678 7208
E-mail: [email protected]
Web: ts.fujitsu.com<http://ts.fujitsu.com/>
Company details: OOO Fujitsu Technology Solutions / ts.fujitsu.com/imprint<http://ts.fujitsu.com/imprint.html>
This communication contains information that is confidential, proprietary in nature and/or privileged.  It is for the exclusive use of the intended recipient(s). If you are not the intended recipient(s) or the person responsible for delivering it to the intended recipient(s), please note that any form of dissemination, distribution or copying of this communication is strictly prohibited and may be unlawful. If you have received this communication in error, please immediately notify the sender and delete the original communication. Thank you for your cooperation.
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From: Heino Walther <[email protected]>
Sent: Thursday, June 25, 2020 11:18 AM
To: Borzenkov, Andrei <[email protected]>; [email protected]
Subject: Re: Quick SAS Cable question

Hi Andrei

We have an aggregate spanning all three shelfs.
What I was thinking was to disconnect the A side of disk shelf (which is possible without any issues)
Then connect up the A side of the shelfs so that they now represent two loops, so two shelfs on one loop, and the last one on its own loop.
I will of cause make sure the controllers are able to see the disks before I move onto the B side of the shelfs…

I’m just afraid that ONTAP might be confused and panic..

/Heino


Fra: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>
Dato: torsdag den 25. juni 2020 kl. 10.12
Til: Heino Walther <[email protected]<mailto:[email protected]>>, "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>
Emne: RE: Quick SAS Cable question

So you have three shelves and aggregate spanning these three shelves that you need to connect to FAS in two stacks, right? It is no problem offline (assuming you have the correct cables), when target FAS is switched off. Doing this online will result in incomplete aggregate unless you manage connecting both stacks almost at the same moment. Depending on raid groups layout, either aggregate won’t come online until you connect missing shelf or FAS may start rebuild due to missing disks.

If you mean something else or you have something different than FAS (there as E-Series etc), please provide more details.


---
Sent from my Fujitsu LIFEBOOK S937
With best regards
Andrei Borzenkov
Senior System Engineer
FJ EMEIA PR FOCP RU SM FSO
[cid:[email protected]]
FUJITSU
Zemlyanoy val 9, 105064 Moscow, Russia
Tel.: +7 (495) 730 6220 ext. 2247
Mob.: +7 (916) 678 7208
E-mail: [email protected]<mailto:[email protected]>
Web: ts.fujitsu.com<http://ts.fujitsu.com/>
Company details: OOO Fujitsu Technology Solutions / ts.fujitsu.com/imprint<http://ts.fujitsu.com/imprint.html>
This communication contains information that is confidential, proprietary in nature and/or privileged.  It is for the exclusive use of the intended recipient(s). If you are not the intended recipient(s) or the person responsible for delivering it to the intended recipient(s), please note that any form of dissemination, distribution or copying of this communication is strictly prohibited and may be unlawful. If you have received this communication in error, please immediately notify the sender and delete the original communication. Thank you for your cooperation.
Please be advised that neither Fujitsu, its affiliates, its employees or agents accept liability for any errors, omissions or damages caused by delays of receipt or by any virus infection in this message or its attachments, or which may otherwise arise as a result of this e-mail transmission.

From: Toasters <[email protected]<mailto:[email protected]>> On Behalf Of Heino Walther
Sent: Thursday, June 25, 2020 10:53 AM
To: [email protected]<mailto:[email protected]>
Subject: Quick SAS Cable question

Hi guys

I’m in the process of moving shelfs from one system to another, and has ran into a pickle where I would like to place one of three shelfs in a loop into its own loop.
Of cause the disks are a part of an aggregate and in production…

Can this be done without any issues?   Just one path of the loop at a time?

I would imagine that it should work fine, but just checking… 😊

/Heino

Heino Walther<https://www.linkedin.com/in/heinowalther/>
Beardmann ApS<http://beardmann.dk/>
Jellingvej 9 - 7100 Vejle<https://goo.gl/maps/xQVPFMHXpXu>

D: 7199 9060 M: 2075 7501
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