<div dir="ltr"><div>Hi Yaron:<br><br></div>This is the filesystem:<br><div><div><br>[root@cl005 net]# mmlsdisk work<br>disk driver sector failure holds holds storage<br>name type size group metadata data status availability pool<br>------------ -------- ------ ----------- -------- ----- ------------- ------------ ------------<br>nsd_a_7 nsd 512 -1 No Yes ready up system <br>nsd_b_7 nsd 512 -1 No Yes ready up system <br>nsd_c_7 nsd 512 -1 No Yes ready up system <br>nsd_d_7 nsd 512 -1 No Yes ready up system <br>nsd_a_8 nsd 512 -1 No Yes ready up system <br>nsd_b_8 nsd 512 -1 No Yes ready up system <br>nsd_c_8 nsd 512 -1 No Yes ready up system <br>nsd_d_8 nsd 512 -1 No Yes ready up system <br>nsd_a_9 nsd 512 -1 No Yes ready up system <br>nsd_b_9 nsd 512 -1 No Yes ready up system <br>nsd_c_9 nsd 512 -1 No Yes ready up system <br>nsd_d_9 nsd 512 -1 No Yes ready up system <br>nsd_a_10 nsd 512 -1 No Yes ready up system <br>nsd_b_10 nsd 512 -1 No Yes ready up system <br>nsd_c_10 nsd 512 -1 No Yes ready up system <br>nsd_d_10 nsd 512 -1 No Yes ready up system <br>nsd_a_11 nsd 512 -1 No Yes ready up system <br>nsd_b_11 nsd 512 -1 No Yes ready up system <br>nsd_c_11 nsd 512 -1 No Yes ready up system <br>nsd_d_11 nsd 512 -1 No Yes ready up system <br>nsd_a_12 nsd 512 -1 No Yes ready up system <br>nsd_b_12 nsd 512 -1 No Yes ready up system <br>nsd_c_12 nsd 512 -1 No Yes ready up system <br>nsd_d_12 nsd 512 -1 No Yes ready up system <br>work_md_pf1_1 nsd 512 200 Yes No ready up system <br>jbf1z1 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf2z1 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf3z1 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf4z1 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf5z1 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf6z1 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf7z1 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf8z1 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf1z2 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf2z2 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf3z2 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf4z2 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf5z2 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf6z2 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf7z2 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf8z2 nsd 4096 2012 No Yes ready up sas_ssd4T <br>jbf1z3 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf2z3 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf3z3 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf4z3 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf5z3 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf6z3 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf7z3 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf8z3 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf1z4 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf2z4 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf3z4 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf4z4 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf5z4 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf6z4 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf7z4 nsd 4096 2034 No Yes ready up sas_ssd4T <br>jbf8z4 nsd 4096 2034 No Yes ready up sas_ssd4T <br>work_md_pf1_2 nsd 512 200 Yes No ready up system <br>work_md_pf1_3 nsd 512 200 Yes No ready up system <br>work_md_pf1_4 nsd 512 200 Yes No ready up system <br>work_md_pf2_5 nsd 512 199 Yes No ready up system <br>work_md_pf2_6 nsd 512 199 Yes No ready up system <br>work_md_pf2_7 nsd 512 199 Yes No ready up system <br>work_md_pf2_8 nsd 512 199 Yes No ready up system <br>[root@cl005 net]# mmlsfs work -R -r -M -m -K<br>flag value description<br>------------------- ------------------------ -----------------------------------<br> -R 2 Maximum number of data replicas<br> -r 2 Default number of data replicas<br> -M 2 Maximum number of metadata replicas<br> -m 2 Default number of metadata replicas<br> -K whenpossible Strict replica allocation option<br><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jan 9, 2017 at 3:34 PM, Yaron Daniel <span dir="ltr"><<a href="mailto:YARD@il.ibm.com" target="_blank">YARD@il.ibm.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><font size="2" face="sans-serif">Hi</font><br><br><font size="2" face="sans-serif">1) Yes in case u have only 1 Failure
group - replication will not work.</font><br><br><font size="2" face="sans-serif">2) Do you have 2 Storage Systems ? When
using GPFS replication write stay the same - but read can be double - since
it read from 2 Storage systems</font><br><br><font size="2" face="sans-serif">Hope this help - what do you try to
achive , can you share your env setup ?<br></font><br><font size="1" face="Arial"> </font><p><font size="2" face="Arial">Regards</font></p><p><font size="1" face="Arial"> </font></p><p></p><p></p><table style="border-collapse:collapse" width="780"><tbody><tr height="8"><td colspan="4" style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="780"><div align="center"><hr noshade></div><p><font size="1" face="Arial"> </font></p></td></tr><tr height="8"><td colspan="4" style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="780"><font size="1" face="Arial"> </font></td></tr><tr height="8"><td colspan="2" style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="516"><font color="blue" size="2" face="Arial"><b>Yaron
Daniel</b></font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="168"><font color="#5f5f5f" size="2" face="Arial"> 94
Em Ha'Moshavot Rd</font></td><td rowspan="3" style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="96"><div align="right"><img src="cid:_1_0992312C09922B9800710502C22580A3" style="border:0px solid" align="bottom"></div></td></tr><tr height="8"><td colspan="2" style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="516"><font color="blue" size="2" face="Arial"><b>Server,
</b></font><a href="https://w3-03.ibm.com/services/isd/secure/client.wss/Somt?eventType=getHomePage&somtId=115" target="_blank"><font color="blue" size="2" face="Arial"><b>Storage
and Data Services</b></font></a><font color="blue" size="2" face="Arial"><b>- Team Leader</b></font><font color="blue" size="1" face="Arial"><b>
</b></font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="168"><font color="#5f5f5f" size="2" face="Arial"> Petach
Tiqva, 49527</font></td></tr><tr height="8"><td colspan="2" style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="516"><font color="blue" size="2" face="Arial"><b>Global
Technology Services</b></font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="168"><font color="#5f5f5f" size="2" face="Arial"> Israel</font></td></tr><tr height="8"><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="90"><font color="#5f5f5f" size="2" face="Arial">Phone:</font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="426"><font color="#5f5f5f" size="2" face="Arial"><a href="tel:+972%203-916-5672" value="+97239165672" target="_blank">+972-3-916-5672</a></font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="168"><font color="#5f5f5f" size="2" face="Arial"> </font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="96"><font size="2"> </font></td></tr><tr height="8"><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="90"><font color="#5f5f5f" size="2" face="Arial">Fax:</font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="426"><font color="#5f5f5f" size="2" face="Arial"><a href="tel:+972%203-916-5672" value="+97239165672" target="_blank">+972-3-916-5672</a></font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="168"><font color="#5f5f5f" size="2" face="Arial">
</font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="96"><font size="2"> </font></td></tr><tr height="8"><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="90"><font color="#5f5f5f" size="2" face="Arial">Mobile:</font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="426"><font color="#5f5f5f" size="2" face="Arial"><a href="tel:+972%2052-839-5593" value="+972528395593" target="_blank">+972-52-8395593</a></font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="168"><font color="#5f5f5f" size="2" face="Arial">
</font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="96"><font size="2"> </font></td></tr><tr height="8"><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="90"><font color="#5f5f5f" size="2" face="Arial">e-mail:</font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="426"><font color="#5f5f5f" size="2" face="Arial"><a href="mailto:yard@il.ibm.com" target="_blank">yard@il.ibm.com</a></font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="168"><font color="#5f5f5f" size="2" face="Arial">
</font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="96"><font size="2"> </font></td></tr><tr height="8"><td colspan="2" style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="516"><a href="http://www.ibm.com/il/he/" target="_blank"><font color="blue" size="2" face="Arial"><u>IBM
Israel</u></font></a></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="168"><font color="#5f5f5f" size="2" face="Arial">
</font></td><td style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="96"><font size="2"> </font></td></tr><tr height="8"><td colspan="4" style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="780"><font color="#5f5f5f" size="1" face="Arial"> </font></td></tr><tr height="8"><td colspan="4" style="border-style:none none none none;border-color:#000000;border-width:0px 0px 0px 0px;padding:0px 0px" width="780"><font color="#5f5f5f" size="1" face="Arial"> </font></td></tr></tbody></table><br><p><font size="3"> </font><br><br><br><br><font color="#5f5f5f" size="1" face="sans-serif">From:
</font><font size="1" face="sans-serif">Brian Marshall <<a href="mailto:mimarsh2@vt.edu" target="_blank">mimarsh2@vt.edu</a>></font><br><font color="#5f5f5f" size="1" face="sans-serif">To:
</font><font size="1" face="sans-serif">gpfsug main discussion
list <<a href="mailto:gpfsug-discuss@spectrumscale.org" target="_blank">gpfsug-discuss@spectrumscale.<wbr>org</a>></font><br><font color="#5f5f5f" size="1" face="sans-serif">Date:
</font><font size="1" face="sans-serif">01/09/2017 10:17 PM</font><br><font color="#5f5f5f" size="1" face="sans-serif">Subject:
</font><font size="1" face="sans-serif">[gpfsug-discuss]
replication and no failure groups</font><br><font color="#5f5f5f" size="1" face="sans-serif">Sent by:
</font><font size="1" face="sans-serif"><a href="mailto:gpfsug-discuss-bounces@spectrumscale.org" target="_blank">gpfsug-discuss-bounces@<wbr>spectrumscale.org</a></font><br></p><hr noshade><div><div class="h5"><br><br><br><font size="3">All,</font><br><br><font size="3">If I have a filesystem with replication set to 2 and 1
failure group:</font><br><br><font size="3">1) I assume replication won't actually happen, correct?</font><br><br><font size="3">2) Will this impact performance i.e cut write performance
in half even though it really only keeps 1 copy?</font><br><br><font size="3">End goal - I would like a single storage pool within the
filesystem to be replicated without affecting the performance of all other
pools(which only have a single failure group)</font><br><br><font size="3">Thanks,</font><br><font size="3">Brian Marshall</font><br></div></div><font size="3">VT - ARC</font><tt><font size="2">___________________________<wbr>____________________<br>gpfsug-discuss mailing list<br>gpfsug-discuss at <a href="http://spectrumscale.org" target="_blank">spectrumscale.org</a><br></font></tt><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss" target="_blank"><tt><font size="2">http://gpfsug.org/mailman/<wbr>listinfo/gpfsug-discuss</font></tt></a><tt><font size="2"><br></font></tt><br><br><br><p></p><p></p><p></p><p></p><br>______________________________<wbr>_________________<br>
gpfsug-discuss mailing list<br>
gpfsug-discuss at <a href="http://spectrumscale.org" rel="noreferrer" target="_blank">spectrumscale.org</a><br>
<a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss" rel="noreferrer" target="_blank">http://gpfsug.org/mailman/<wbr>listinfo/gpfsug-discuss</a><br>
<br></blockquote></div><br></div>