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Post by jetjockey on Sept 22, 2007 15:27:42 GMT 7
Many thanks. I suppose that I copy it onto the Thecus from my Vista machine and run some sort of install routine on the Thecus?? Can you confirm that I also copy it onto the root of the Thecus? I assume thats the part that shows me the Snapshot and USB folders and Printer Icon when I look at the Thecus? Finally, having freed up the extra 5% chunk of space.......... Does it become available as part of the RAID portion of the DRIVE or the iSCSI portion? Please don't tell me it's the iSCSI portion, it took 2 days to format!!!!!
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glo8al
Junior Member
Posts: 95
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Post by glo8al on Sept 22, 2007 16:28:39 GMT 7
It is a Module so you install it via the module menu under system (I think I can acces sit atm). Using this it will install it in the right location. I don't know what will happen when you get the 5% back, but I guess it will be free and not part of the iSCSI.
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Post by jetjockey on Sept 22, 2007 16:44:29 GMT 7
Errrr..... Many thanks, but module menu..........Under system?? How do I get access to that?? Is it accessed via the Thecus Web Interface? or do I have to use FTP, and if so what client? I am pretty quick with DOS and Windows but........... As you can see, my Linux and Thecus knowledge is not so good. Once I have seen this in action, I will be able to manage, but some pointers on how to access the Module management and system would be appreciated. Best regards, Jet.
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Post by gideon007 on Sept 22, 2007 17:07:59 GMT 7
web interface
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Post by jetjockey on Sept 23, 2007 2:31:23 GMT 7
Hi glo8al Problem. I have downloaded the Utils module, together with the recommended SysUser and SysHD modules. I gather that having installed these three modules I then need to use SSH to access the Thecus to run the tune2fs prog? How do I do this from my Win Vista machine? do I need to download a SSH client for my Win Machine, and if so which one? I'm nearly there!!!!!! Thanks, Jet.
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Post by peterfu on Sept 23, 2007 2:58:22 GMT 7
do I need to download a SSH client for my Win Machine, and if so which one? I'm nearly there!!!!!! Thanks, Jet. Yes, you need a SSH Client - putty is a popular one. br Peter
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Post by jetjockey on Sept 23, 2007 15:38:57 GMT 7
Thanks everybody, for all the help. ;D
Down in the Murcia area of Spain for a few days at the moment having a break. Back to UK on Tuesday eve.
Will let everyone know how I got on by Wednesday. Will be interesting to see where the extra space appears - Raid or iSCSI.
Thanks again, Jet.
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Post by jetjockey on Sept 26, 2007 23:15:40 GMT 7
Well.. Back home in South Wales. All modules (Utils, SSHD, SYSUSER) installed after a struggle finding my way around. ut_tune2fs command issued in various formats and results noted. Question. Despite the fact that after issuing the "-m 0" switch and checking to confirm that the reserved space has now been set to zero percent / blocks, the Total free blocks remain the same at 4664958. Should I not be seeing this number increase by 242,483 blocks which is the original 5% that I have now freed up??? Also, there is no increase shown in capacity on the RAID page via the Web interface on the Thecus?? Do I need to reboot the Thecus perhaps? Can somebody clarify please? Thanks, Jet.
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Post by omega on Sept 27, 2007 20:36:13 GMT 7
You are looking to the wrong values.... The 5% means that 5% of the total filesystem space is reserved to the root user (to what user can even be set btw.). In other words, the filesystem size will not change but the available disk space. Issue the command "df /raid/data" and you will see that the value below the "Available" column increased. If you want to verify this, just set the 5% again, check that value and then compare it when set to 0%. This explains why the total space and the RAID size doesn't change. Andreas
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Post by turtlesoup on Oct 12, 2007 13:59:41 GMT 7
WOW!!! Thank you omega!!!! I just installed you're SSHD, SYSUSER, & UTILS mods and was able to get just under 100GB back! Thank you!!!!!!!!!!!
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Post by grizzlybear on Oct 13, 2007 18:17:44 GMT 7
The space isn't really reserved for the root user. The space is reserved for the filesystem internals to allow for optimal allocation on disk (keeping fragmentation to a minimum).
Depending on your usage model, I think that you will find that that your performance will begin to degrade once you are over the 90% mark. For a filesystem with lots of changes, the performance impact could be significant over time.
For BSD style filesystems, the reservation used to be 10%. For the size of modern volumes, even the 5% reservation may be too large, but please don't misunderstand what it is for and the impact of changing it.
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Post by omega on Jan 2, 2008 17:22:07 GMT 7
Hi, grizzlybear: honestly you are not right At least for Linux (and the N5200 runs Linux) the reserved blocks are reserved for the root user in order to prevent that ordinary users fill upp the root filesystem. Due to the fact that the /raid filesystem is not the root file system, this 5% setting doesn't make sense at all. @all: I've had time to check out the differences between the FW versions 2.00.01 and 2.00.04. At least they have read my post here about this issue and they have added the "tune2fs -m 0" command for the raid filesystem. Now, every time the raid is started, the reservred block count is set to zero. So starting with 2.00.04 you don't need to set this manually anymore. Andreas
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