[dm-devel] Device Access Question

[Herr, Manuel]

Is it correct that if an LUN is seen over 2 Paths,
1 active 1 standby i cannot fdisk the standby device?

#multipath -l
(3600601604032190097fd5fbefd22db11)
[size=11 GB][features="1 queue_if_no_path"][hwhandler="1 emc"]
\_ round-robin 0 [active]
 \_ 3:0:0:7 sdi 8:128 [active][ready]
\_ round-robin 0 [enabled]
 \_ 3:0:1:7 sdq 65:0  [active][ready]

#fdisk -l /dev/sdi
Disk /dev/sdi: 11.8 GB, 11811160064 bytes
255 heads, 63 sectors/track, 1435 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdi1               1        1435    11526606   83  Linux

#fdisk -l /dev/sdq
--> creates in /var/log/messages
Sep 28 12:01:22 saptf2 kernel: end_request: I/O error, dev sdq, sector 0
Sep 28 12:01:22 saptf2 kernel: Buffer I/O error on device sdq, logical block 0

Regards Manuel Herr
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