<font size=2 face="sans-serif">Hallo Heiner, Stefan, </font><br><br><font size=2 face="sans-serif">thx for this heads up ..</font><br><font size=2 face="sans-serif">we know ... it's all GNR .. so the answer
is a bit different, depending on the scenario </font><br><font size=2 face="sans-serif">on the regular building blocks.. the
RG Layout (2 RGs per BB) .. is different from the scale out ECE (#4+ nodes,
one RG ) </font><br><br><font size=2 face="sans-serif">The absolute max #vdisk is ( I think
) 512 per RG - but I would <b>not </b>recommend to go
that far , when designing a data layout .. if ever possible.. </font><br><font size=2 face="sans-serif">we can have a short talk next week on
that.. </font><br><font size=2 face="sans-serif">Try to keep the #vdisk as small as you
can is the better approach .. </font><br><br><br><br><br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">"Dietrich, Stefan"
<stefan.dietrich@desy.de></font><br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">gpfsug main discussion
list <gpfsug-discuss@spectrumscale.org></font><br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">12/13/2019 02:26 AM</font><br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">[EXTERNAL] Re:
[gpfsug-discuss] Max number of vdisks in a recovery group - is it
64?</font><br><font size=1 color=#5f5f5f face="sans-serif">Sent by:
</font><font size=1 face="sans-serif">gpfsug-discuss-bounces@spectrumscale.org</font><br><hr noshade><br><br><br><tt><font size=2>Hello Heiner,<br><br>the 64 vdisk limit per RG is still present in the latest ESS docs:<br></font></tt><a href="https://www.ibm.com/support/knowledgecenter/SSYSP8_5.3.5/com.ibm.spectrum.scale.raid.v5r04.adm.doc/bl1adv_vdisks.htm"><tt><font size=2>https://www.ibm.com/support/knowledgecenter/SSYSP8_5.3.5/com.ibm.spectrum.scale.raid.v5r04.adm.doc/bl1adv_vdisks.htm</font></tt></a><tt><font size=2><br><br>For the other questions, no idea.<br><br>Regards,<br>Stefan<br><br>----- Original Message -----<br>> From: "Billich Heinrich Rainer (ID SD)" <heinrich.billich@id.ethz.ch><br>> To: "gpfsug main discussion list" <gpfsug-discuss@spectrumscale.org><br>> Sent: Thursday, December 12, 2019 3:26:31 PM<br>> Subject: [gpfsug-discuss] Max number of vdisks in a recovery group
- is it
64?<br><br>> Hello,<br>> <br>> I remember that a GNR/ESS recovery group can hold up to 64 vdisks,
but I can’t<br>> find a citation to proof it. Now I wonder if 64 is the actual
limit? And where<br>> is it documented? And did the limit change with versions? Thank you.
I did<br>> spend quite some time searching the documentation, no luck .. maybe
you know.<br>> <br>> We run ESS 5.3.4.1 and the recovery groups have current/allowable
format<br>> version 5.0.0.0<br>> <br>> Thank you,<br>> <br>> Heiner<br>> --<br>> =======================<br>> Heinrich Billich<br>> ETH Zürich<br>> Informatikdienste<br>> Tel.: +41 44 632 72 56<br>> heinrich.billich@id.ethz.ch<br>> ========================<br>> <br>> <br>> <br>> <br>> _______________________________________________<br>> gpfsug-discuss mailing list<br>> gpfsug-discuss at spectrumscale.org<br>> </font></tt><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss"><tt><font size=2>http://gpfsug.org/mailman/listinfo/gpfsug-discuss</font></tt></a><tt><font size=2><br>_______________________________________________<br>gpfsug-discuss mailing list<br>gpfsug-discuss at spectrumscale.org<br></font></tt><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss"><tt><font size=2>http://gpfsug.org/mailman/listinfo/gpfsug-discuss</font></tt></a><tt><font size=2><br><br></font></tt><br><br><BR>