this is a part of the german lvm HOW-TO Q: Why can i not have a Logical volume biger than 256Gb ? A: This is NO absolute limit but it depends on the physical extent size you configured at volume group creation time. Please use option -s of the vgcreate command to give a larger physical extent size. For example with a physical extent size of 524288 KB (512 MB) you are able to map a logical volume of 32 Terabyte. Remember that current Linux kernels are limited to 1 Terabyte. Jan-Benedict Glaw wrote: >Hi! > >I'm to build some storage pool for an in-company network. It >will exceed 1TB in some time, so I'd like to get some proper >information on this *before* I get into trouble:-) So, my >final question is: How big may an LV be? > >The FAQ tells me (in Q9) something of 2TB, but lvextend INFOs >me of a maximum of 1TB. Where's the real limit? My understanding >is that limitation is coming from kernel to handle all data >in chunks of 512Bytes. Is the maximum number of 512Byte blocks >per device to be increased in some time? > >MfG, JBG >
