I have a Poweredge SE1435 which seems to be very slow and i noticed something odd... I can create a large file with dd faster than I can delete it.
# date; dd if=/dev/zero of=zero.txt bs=1024 count=1000000; date; rm zero.txt; date Tue May 4 16:59:21 CDT 2010 1000000+0 records in 1000000+0 records out 1024000000 bytes (1.0 GB) copied, 11.7291 s, 87.3 MB/s Tue May 4 16:59:33 CDT 2010 Tue May 4 17:00:09 CDT 2010 It took 12 seconds to create the file and 33 seconds to rm it. Why would that be? This machine is serving as a print server, debian package mirror, and a mmysql database server. I am not sure what kind of info you might need to help me. But for starters, I'm running debian lenny with a 2.6.30 kernel. The file system is ext3. There are 2 500 Gb disks in the machine configured as RAID-1. Here is the output from 'omreport storage vdisk controller=0' and 'omreport storage pdisk controller=0' ... Virtual Disk 0 on Controller SAS 5/iR Adapter (Embedded) Controller SAS 5/iR Adapter (Embedded) ID : 0 Status : Ok Name : Virtual Disk 0 State : Ready Progress : Not Applicable Layout : RAID-1 Size : 465.66 GB (499999834112 bytes) Device Name : /dev/sda Bus Protocol : SATA Media : HDD Read Policy : No Read Ahead Write Policy : Write Through Cache Policy : Not Applicable Stripe Element Size : Not Applicable List of Physical Disks on Controller SAS 5/iR Adapter (Embedded) Controller SAS 5/iR Adapter (Embedded) ID : 0:0 Status : Ok Name : Physical Disk 0:0 State : Online Failure Predicted : No Progress : Not Applicable Bus Protocol : SATA Media : HDD Capacity : 465.66 GB (499999834112 bytes) Used RAID Disk Space : 465.66 GB (499999834112 bytes) Available RAID Disk Space : 0.00 GB (0 bytes) Hot Spare : No Vendor ID : DELL Product ID : HDS725050KLA360 Revision : K2AOAB5A Serial No. : KRVN67ZBGXVEVFGXVEVF Negotiated Speed : Not Available Capable Speed : Not Available Manufacture Day : Not Available Manufacture Week : Not Available Manufacture Year : Not Available SAS Address : 1221000000000000 ID : 0:1 Status : Ok Name : Physical Disk 0:1 State : Online Failure Predicted : No Progress : Not Applicable Bus Protocol : SATA Media : HDD Capacity : 465.66 GB (499999834112 bytes) Used RAID Disk Space : 465.66 GB (499999834112 bytes) Available RAID Disk Space : 0.00 GB (0 bytes) Hot Spare : No Vendor ID : DELL Product ID : HDS725050KLA360 Revision : K2AOAB5A Serial No. : KRVN67ZBGXT2BFGXT2BF Negotiated Speed : Not Available Capable Speed : Not Available Manufacture Day : Not Available Manufacture Week : Not Available Manufacture Year : Not Available SAS Address : 1221000001000000 _______________________________________________ Linux-PowerEdge mailing list [email protected] https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
