[Lustre-discuss] No space left on device on not full filesystem

Katya Tutlyaeva ordi at xgl.pereslavl.ru
Fri Jul 9 01:51:56 PDT 2010


Thank you all for answers!

 

Really, I have running out of inodes,

[client]$ lfs df -i

UUID                    Inodes     IUsed     IFree IUse% Mounted on

lustre-MDT0000_UUID   13111096  13111096         0  100% /mnt/lustre[MDT:0]

lustre-OST0000_UUID   57778176   1457730  56320446    2% /mnt/lustre[OST:0]

lustre-OST0001_UUID   61054976   1457660  59597316    2% /mnt/lustre[OST:1]

lustre-OST0002_UUID   61054976   1457725  59597251    2% /mnt/lustre[OST:2]

lustre-OST0003_UUID   61054976   1457397  59597579    2% /mnt/lustre[OST:3]

lustre-OST0004_UUID   61054976   1457619  59597357    2% /mnt/lustre[OST:4]

lustre-OST0005_UUID   61054976   1457623  59597353    2% /mnt/lustre[OST:5]

lustre-OST0006_UUID   61054976   1455512  59599464    2% /mnt/lustre[OST:6]

lustre-OST0007_UUID   61054976   1455511  59599465    2% /mnt/lustre[OST:7]

lustre-OST0008_UUID   61054976   1455479  59599497    2% /mnt/lustre[OST:8]

 

filesystem summary:   13111096  13111096         0  100% /mnt/lustre

 

Would you be so kind to give me the advice How can I tune number of 
inodes without loss of data? And which number of inodes I need? I’m 
newbie in Lustre.. If I'll set  -N 20000000 to create 2 millions  of 
inodes it will take 2000000*512/(1024*1024) =  9765.625 MB of  MDS 
capacity? (Inode size is near 512 bytes, isn't it?) Where can I look the 
inode size?


Thank again!

 

Regards,

Katya

 

*From:* turek.wojciech at gmail.com [mailto:turek.wojciech at gmail.com] *On 
Behalf Of *Wojciech Turek
*Sent:* Thursday, July 08, 2010 8:14 PM
*To:* Katya Tutlyaeva
*Cc:* lustre-discuss at lists.lustre.org
*Subject:* Re: [Lustre-discuss] No space left on device on not full 
filesystem

 

Hi,

Looks like your file system is running out of inodes. Please do lfs df 
-i on client and copy the output here.

best regards,


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-- 
--
Wojciech Turek

Assistant System Manager

High Performance Computing Service
University of Cambridge




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