2010/8/11 Rahul Nabar <<a href="mailto:rpnabar@gmail.com">rpnabar@gmail.com</a>> <div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Some of the physical volumes show "Allocatable yes (but full)" while others don't. How does one relate this to the actual capacity? THe reason I am confused is that 3 of my PV's show up as full and each is 1.63 TB. Thus the total full space would come to 4.89 TB. But the sum of full space of all my LV's is only around 3 TB (based on the output of df) I've reproduced the outputs of pvdisplay, lvdisplay and df below. I'm confused! Any pointers? -- Rahul </blockquote><div> Hi Rahul, you really appear to have 6 PV (not three) of 1.63TB each and all that storage space is assigned to the VG euclid_highperf_storage . The VG has three LV defined from it and indeed has free space; using these LV you created three filesystems which have free space too, as Ray just explained. You have not shown the output of a vgs command but if If you issue it you should see something like this: #vgs VG #PV #LV #SN Attr VSize VFree euclid_highperf_storage 6 3 0 wz--n- 9.8T 1.22T and so you still have 1.22 TB of free space to use some math... Details from pvdisplay: PE Size (KByte) 4096 = 4MB VG Name euclid_highperf_storage Total PE= 428351*6 = 2570106*4MB = 10280424 MB = 9.8TB total Free PE: 38140+140607+140607 = 319354*4MB = 1277416M = 1.22 TB total Allocated PE: 428351*3+390211+287744+287744 = 2250752*4MB = 9003008 MB = 8.58 TB Details from lvdisplay: Current LE 1572864+153600+524288 = 2250752 exactly like the Allocated PE in pvdisplay Best regards, Giorgio. </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> [root@eustorage ~]# pvdisplay --- Physical volume --- PV Name /dev/sdb VG Name euclid_highperf_storage PV Size 1.63 TB / not usable 4.00 MB Allocatable yes (but full) PE Size (KByte) 4096 Total PE 428351 Free PE 0 Allocated PE 428351 PV UUID wDdbmP-2n5m-98HD-Ewqk-Q3y0-lnMf-rsaVXt --- Physical volume --- PV Name /dev/sdc VG Name euclid_highperf_storage PV Size 1.63 TB / not usable 4.00 MB Allocatable yes (but full) PE Size (KByte) 4096 Total PE 428351 Free PE 0 Allocated PE 428351 PV UUID 75i75q-2rec-2FMf-eyPa-W0nF-zFHH-PIAvvc --- Physical volume --- PV Name /dev/sdd VG Name euclid_highperf_storage PV Size 1.63 TB / not usable 4.00 MB Allocatable yes (but full) PE Size (KByte) 4096 Total PE 428351 Free PE 0 Allocated PE 428351 PV UUID vo2Jh2-PfFC-eOj4-GYnP-Jx1I-Sisu-2nY4lC --- Physical volume --- PV Name /dev/sde VG Name euclid_highperf_storage PV Size 1.63 TB / not usable 4.00 MB Allocatable yes PE Size (KByte) 4096 Total PE 428351 Free PE 38140 Allocated PE 390211 PV UUID EK7cvF-IZjf-PJVw-d2RR-lCdt-kOSD-iqFtOf --- Physical volume --- PV Name /dev/sdf VG Name euclid_highperf_storage PV Size 1.63 TB / not usable 4.00 MB Allocatable yes PE Size (KByte) 4096 Total PE 428351 Free PE 140607 Allocated PE 287744 PV UUID fQXN8S-HhYu-weoq-kbuz-BrxZ-6WQk-6ydBDw --- Physical volume --- PV Name /dev/sdg VG Name euclid_highperf_storage PV Size 1.63 TB / not usable 4.00 MB Allocatable yes PE Size (KByte) 4096 Total PE 428351 Free PE 140607 Allocated PE 287744 PV UUID i7GD1d-rbd2-efKd-uK3u-D3S2-BxJv-UkrNve [root@eustorage ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 76G 8.6G 64G 12% / /dev/sda6 19G 365M 17G 3% /var /dev/sda5 15G 165M 14G 2% /tmp /dev/sda1 487M 17M 445M 4% /boot tmpfs 24G 0 24G 0% /dev/shm /dev/mapper/euclid_highperf_storage-LV_home 6.0T 1.4T 4.4T 24% /home /dev/mapper/euclid_highperf_storage-LV_export 591G 17G 550G 3% /opt /dev/mapper/euclid_highperf_storage-LV_polhome 2.0T 1.5T 386G 80% /polhome [root@eustorage ~]# lvdisplay --- Logical volume --- LV Name /dev/euclid_highperf_storage/LV_home VG Name euclid_highperf_storage LV UUID gu7yo1-TYYr-ucHG-QSDk-y8HD-ETrs-Z5kCk9 LV Write Access read/write LV Status available # open 1 LV Size 6.00 TB Current LE 1572864 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 1536 Block device 253:0 --- Logical volume --- LV Name /dev/euclid_highperf_storage/LV_export VG Name euclid_highperf_storage LV UUID 1lktLy-Hgn3-qS1m-41VJ-5kNY-DMyb-1ri4Th LV Write Access read/write LV Status available # open 1 LV Size 600.00 GB Current LE 153600 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 1536 Block device 253:1 --- Logical volume --- LV Name /dev/euclid_highperf_storage/LV_polhome VG Name euclid_highperf_storage LV UUID xqpOX5-HFey-H0qi-NgjP-NVS7-FwDb-zbiK8m LV Write Access read/write LV Status available # open 1 LV Size 2.00 TB Current LE 524288 Segments 4 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:2 <div><div></div><div class="h5"> </div></div></blockquote><div> </div></div>