https://community.hpe.com/t5/disk-enclosures/server-detects-4-external-disks/m-p/3594284#M17064 Most likely this is a san attached disk that has more than one path. If this is teh case you will need path failover from a vendor like qlogic or emc or HP. Depends on who makes the fiber card and who the storage is from. Tue, 02 Aug 2005 00:16:24 GMT generic_1 2005-08-02T00:16:24Z https://community.hpe.com/t5/disk-enclosures/server-detects-4-external-disks/m-p/3594283#M17063 hi all,<BR /><BR />i have a linux server and currently it has only one external disk. when i issued the command "iostat" on the device column it displays up to 4 external disks. tried to reboot it, same output(i attached a copy of the output). i'd just like to know why.<BR />why does the server detects 4 external disks?<BR />thanks! Mon, 01 Aug 2005 21:23:23 GMT https://community.hpe.com/t5/disk-enclosures/server-detects-4-external-disks/m-p/3594283#M17063 Wanda_5 2005-08-01T21:23:23Z https://community.hpe.com/t5/disk-enclosures/server-detects-4-external-disks/m-p/3594284#M17064 Most likely this is a san attached disk that has more than one path. If this is teh case you will need path failover from a vendor like qlogic or emc or HP. Depends on who makes the fiber card and who the storage is from. Tue, 02 Aug 2005 00:16:24 GMT https://community.hpe.com/t5/disk-enclosures/server-detects-4-external-disks/m-p/3594284#M17064 generic_1 2005-08-02T00:16:24Z