Figure 1-11 Sequential volume Figure 1-10 Striped volume GLYPH<SM590000> Sequential  GLYPH<SM590000> Image mode Image mode volumes are special volumes that have a direct relationship with one MDisk.  They are used to migrate data into and out of the clustered system to or from external FC  SAN-attached storage. A sequential volume is a volume in which the extents are allocated one after the other from  one MDisk to the next MDisk, as shown in Figure 1-11. 26  Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.2.1