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OpenShift で大容量ディスクの mkfs.xfs 実行中にVMがハングする

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Category:
astra_trident
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snapx
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環境

  • Trident
  • OpenShift 環境
  • ONTAP-SAN

問題

  • OpenShift環境でTridentを使用している場合、100GBを超えるディスクをmkfs.xfsでフォーマットすると、VMがハングします

100GBのディスクを使用する場合:

[root@HOST_NAME ~]# mkfs.xfs -L <label> /dev/<device>
meta-data=/dev/vdx         isize=512   agcount=4, agsize=6553600 blks
     =             sectsz=512   attr=2, projid32bit=1
     =             crc=1     finobt=1, sparse=1, rmapbt=0
     =             reflink=1   bigtime=1 inobtcount=1 nrext64=0
data    =             bsize=4096   blocks=26214400, imaxpct=25
     =             sunit=0    swidth=0 blks
naming   =version 2        bsize=4096   ascii-ci=0, ftype=1
log    =internal log       bsize=4096   blocks=16384, version=2
     =             sectsz=512   sunit=0 blks, lazy-count=1
realtime =none           extsz=4096   blocks=0, rtextents=0
Discarding blocks...Done.

100GB超のディスクを使用する場合:

[root@HOST_NAME ~]# mkfs.xfs -L <label> /dev/<device>
meta-data=/dev/vdx         isize=512   agcount=4, agsize=13107200 blks
     =             sectsz=512   attr=2, projid32bit=1
     =             crc=1     finobt=1, sparse=1, rmapbt=0
     =             reflink=1   bigtime=1 inobtcount=1 nrext64=0
data    =             bsize=4096   blocks=52428800, imaxpct=25
     =             sunit=0    swidth=0 blks
naming   =version 2        bsize=4096   ascii-ci=0, ftype=1
log    =internal log       bsize=4096   blocks=25600, version=2
     =             sectsz=512   sunit=0 blks, lazy-count=1
realtime =none           extsz=4096   blocks=0, rtextents=0

  • /var/log/messagesファイルでOpenShiftホストに次のエラーが観測されます:

<span style="font-size:inherit">2025-09-14T09:52:03.745994-04:00  kernel: Buffer I/O error on dev dm-2, logical block 6251249536, async page read</span>
<span style="font-size:inherit">2025-09-14T09:52:03.746033-04:00  kernel: Buffer I/O error on dev dm-2, logical block 6251249537, async page read</span>
<span style="font-size:inherit">2025-09-14T09:52:03.746052-04:00  kernel: Buffer I/O error on dev dm-2, logical block 6251249538, async page read</span>

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