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If I am need more inodes in my OST, I have a big trouble!, becouse I
will need format all OST in my production storage environment.<br>
<br>
Any ideas to increase the inodes number in my OST without formating?<br>
<br>
Thanks!!!<br>
<br>
<br>
<br>
On 27/09/12 14:26, Enrico Tagliavini wrote:
<blockquote
cite="mid:CAMQd7mZ4PuGkwmZe19nf-B=LkcyM8cE-A7po7t1t1kLALTUG6g@mail.gmail.com"
type="cite">Disclaimer: I'm not 100% sure if this guess is
correct, so please correct me if I'm wrong :).<br>
<br>
The amount of available inodes is not limited only by the MDT
size. You datas is physically on OSTs on ldiskfs, so an ext3/4
mod. ldiskfs has inodes limits as a normal ext4. It is true that
you can't create more inodes then the MDT limit, but at the same
time OSTs can full their inodes too even if the MDT is far from
full. In other words you have two limiting factors for inodes: the
total number of inode supported by your MDT(s), and the sum of the
OSTs.<br>
<br>
The solution is to add more OSTs or to format them with more
inodes. I have no idea if you can change it without formatting
them. If I recall correctly in ext4 is not possible.<br>
<br>
Regards<br>
Enrico<br>
<br>
<div class="gmail_quote">
On Thu, Sep 27, 2012 at 2:17 PM, Alfonso Pardo <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:alfonso.pardo@ciemat.es"
target="_blank">alfonso.pardo@ciemat.es</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Hello,<br>
<br>
When I run a "df -i" in my clients I get 95% indes used or
5% inodes free:<br>
<br>
<small>Filesystem
Inodes IUsed IFree IUse% Mounted on<br>
lustre-mds-01:lustre-mds-02:/cetafs 22200087 20949839
1250248 95% /mnt/data</small><br>
<br>
<br>
<br>
But if I run lfs df -i i get:<br>
<br>
<small>UUID Inodes
IUsed IFree I Use% Mounted on<br>
cetafs-MDT0000_UUID 975470592 20949223 954521369
2% /mnt/data[MDT:0]<br>
cetafs-OST0000_UUID 19073280 17822213 1251067
93% /mnt/data[OST:0]<br>
cetafs-OST0001_UUID 19073280 17822532 1250748
93% /mnt/data[OST:1]<br>
cetafs-OST0002_UUID 19073280 17822560 1250720
93% /mnt/data[OST:2]<br>
cetafs-OST0003_UUID 19073280 17822622 1250658
93% /mnt/data[OST:3]<br>
cetafs-OST0004_UUID 19073280 17822181 1251099
93% /mnt/data[OST:4]<br>
cetafs-OST0005_UUID 19073280 17822769 1250511
93% /mnt/data[OST:5]<br>
cetafs-OST0006_UUID 19073280 17822378 1250902
93% /mnt/data[OST:6]<br>
cetafs-OST0007_UUID 19073280 17822131 1251149
93% /mnt/data[OST:7]<br>
cetafs-OST0008_UUID 19073280 17822419 1250861
93% /mnt/data[OST:8]<br>
cetafs-OST0009_UUID 19073280 17822151 1251129
93% /mnt/data[OST:9]<br>
cetafs-OST000a_UUID 19073280 17822894 1250386
93% /mnt/data[OST:10]<br>
cetafs-OST000b_UUID 19073280 17822328 1250952
93% /mnt/data[OST:11]<br>
cetafs-OST000c_UUID 19073280 17822388 1250892
93% /mnt/data[OST:12]<br>
cetafs-OST000d_UUID 19073280 17822336 1250944
93% /mnt/data[OST:13]<br>
cetafs-OST000e_UUID 19073280 17822139 1251141
93% /mnt/data[OST:14]<br>
cetafs-OST000f_UUID 19073280 17823451 1249829
93% /mnt/data[OST:15]<br>
cetafs-OST0010_UUID 19073280 17822354 1250926
93% /mnt/data[OST:16]<br>
cetafs-OST0011_UUID 19073280 17822676 1250604
93% /mnt/data[OST:17]<br>
<br>
filesystem summary: 975470592 20949223 954521369
2% /mnt/data</small><br>
<br>
I have a 2Tb for MDT wich only 87Gb used.<br>
<br>
<br>
Any suggestion?<span class="HOEnZb"><font color="#888888"><br>
<br>
<div>-- <br>
<p><i><span style="font-size:10pt;font-family:Century
Gothic">Alfonso Pardo Díaz</span><br>
<b><span style="font-size:10pt;font-family:Century
Gothic">Researcher / System Administrator at
CETA-Ciemat</span></b><br>
<span style="font-size:10pt;font-family:Century
Gothic">c/ Sola nº 1; 10200 Trujillo, ESPAÑA</span><br>
<span style="font-size:10pt;font-family:Century
Gothic">Tel: +34 927 65 93 17 Fax: +34 927 32 32
37</span><br>
<span><a moz-do-not-send="true"
href="http://www.ceta-ciemat.es/"
target="_blank"><img moz-do-not-send="true"
src="" alt="CETA-Ciemat logo" height="76"
border="0" width="383"></a></span></i></p>
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<br>
</blockquote>
<br>
<br>
<div class="moz-signature">-- <br>
<p><i><span style="font-size: 10pt;font-family:Century Gothic;">Alfonso
Pardo Díaz</span><br>
<b><span style="font-size: 10pt;font-family:Century Gothic;">Researcher
/ System Administrator at CETA-Ciemat</span></b><br>
<span style="font-size: 10pt;font-family:Century Gothic;">c/
Sola nº 1; 10200 Trujillo, ESPAÑA</span><br>
<span style="font-size: 10pt;font-family:Century Gothic;">Tel:
+34 927 65 93 17 Fax: +34 927 32 32 37</span><br>
<span><a href="http://www.ceta-ciemat.es/"><img
src="cid:part4.08060106.05060506@ciemat.es"
alt="CETA-Ciemat logo" height="76" border="0"
width="383"></a></span></i></p>
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