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yguw
yguw
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I am working on Ext3 and after looking at FS layout - ext3 reserves ~1024 blocks as Reserved Group Descriptor Table (reserved GDT blocks are between Group Descriptor blocks and Bitmap blocks). These blocks are used once we do online resizing. I was wondering - how these reserved blocks are used after online resizing is done? Are these free blocks used as data blocks or they can be used for other purposes as well? Also, what is the impact (apart from the fact that online -resizing will not work) if we don't leave any room for reserved GDT?

I am working on Ext3 and after looking at FS layout - ext3 reserves ~1024 blocks as Reserved Group Descriptor Table (reserved GDT blocks are between Group Descriptor blocks and Bitmap blocks). These blocks are used once we do online resizing. I was wondering - how these reserved blocks are used after online resizing is done? Are these free blocks used as data blocks or they can be used for other purposes as well?

I am working on Ext3 and after looking at FS layout - ext3 reserves ~1024 blocks as Reserved Group Descriptor Table (reserved GDT blocks are between Group Descriptor blocks and Bitmap blocks). These blocks are used once we do online resizing. I was wondering - how these reserved blocks are used after online resizing is done? Are these free blocks used as data blocks or they can be used for other purposes as well? Also, what is the impact (apart from the fact that online -resizing will not work) if we don't leave any room for reserved GDT?

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yguw
yguw
  • 219
  • 2
  • 5

How are the reserved GDT blocks used after online resizing in ext3 file system

I am working on Ext3 and after looking at FS layout - ext3 reserves ~1024 blocks as Reserved Group Descriptor Table (reserved GDT blocks are between Group Descriptor blocks and Bitmap blocks). These blocks are used once we do online resizing. I was wondering - how these reserved blocks are used after online resizing is done? Are these free blocks used as data blocks or they can be used for other purposes as well?