Linux Storage and Filesystems
64 incident problems about Linux Storage and Filesystems. Start with the reviewed ones.
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All problems (64)
LINUX-345A restored RAID array looks healthy while the regenerated initramfs still lacks the md metadata mode expected by the current boot entry during a staged decommissionStorage is assembled after boot, yet the boot chain itself still expects a different assembly contract. The service still works through the primary path, but one dependency only fails when the old component is finally drained away.LinuxAdvanced18 minProLINUX-113A shell cleanup trap unmounts the bind mount before the child process exits and late writes vanish from the host pathThe script looks tidy, but teardown runs too early and data written by a still-running child process disappears into a dead mount namespace.LinuxAdvanced18 minProLINUX-126A systemd mount unit starts before network-online and the iSCSI-backed filesystem fails intermittently after fast bootsSlow boots hide the problem, but optimized startup exposes an ordering race between storage dependencies and network readiness.LinuxAdvanced18 minProLINUX-246An XFS repair clears corruption while the application still points at the previous UUID in fstab during a failover rehearsalThe filesystem is healthy again and the boot or mount contract still points somewhere else. Normal traffic masked the issue until the standby or alternate path became active under rehearsal conditions.LinuxAdvanced18 minProLINUX-080XFS project quota silently blocks writes inside the container content pathThe filesystem still has free space, but one workload starts failing writes because a project quota limit was reached on the specific content subtree it uses.LinuxAdvanced18 minProLINUX-114An LVM snapshot merge is scheduled but initramfs is never rebuilt and the root rollback fails on rebootThe rollback plan seems prepared, yet boot falls apart because the early userspace image does not know about the new storage state.LinuxAdvanced19 minProLINUX-081OverlayFS upperdir fills the root filesystem while the underlying data volume still looks emptyContainer workloads write successfully for a while, but the host runs out of space because the upper layer resides on root and not on the large data device operators are watching.LinuxAdvanced19 minProLINUX-065LVM snapshot reaches 100 percent and the application filesystem stallsThe origin volume still has free space, but writes slow or freeze because the snapshot copy-on-write area filled and the backup workflow never released it.LinuxAdvanced22 minProLINUX-058XFS log recovery loop continues after an unclean volume detachThe block device is back online, but the filesystem still refuses to mount cleanly because the recovery path never completed and the operator keeps retrying the same mount blindly.LinuxAdvanced25 minProLINUX-023Ephemeral disk pressure kills cache but not the root causeEphemeral disk pressure kills cache but not the root cause is a hands-on troubleshooting drill. Cleaning temp files buys time, but write amplification from another process quickly recreates the same disk pressure. Linux Service Operations needs to be checked by narrowing scope...LinuxAdvanced26 minProLINUX-040Overlay mount reports no space left on device while df still shows free blocksContainer creation fails with a storage error even though normal disk and inode checks look healthy, pointing to overlay, mount, or lower-level storage limits rather than a simple full disk.LinuxAdvanced27 minProLINUX-029Readonly remount happens only after storage latency burstThe filesystem looks healthy most of the time, but latency spikes trigger IO errors that remount the volume as readonly.LinuxAdvanced28 minProLINUX-1482A Fedora rsyslog queue drains and journald still growsDisk use keeps growing under journald after rsyslog spool hardening on Fedora-based log collectors.LinuxAdvanced11 minProLINUX-1487An mdadm reshape resumes after reboot and write performance collapsesThroughput craters after a reboot in the middle of an array reshape even though the array reports healthy.LinuxAdvanced12 minProLINUX-1484An NFS mount remounts cleanly and one app still sees stale handlesA remounted NFS path still throws stale file handle errors only for processes that survived the maintenance window.LinuxAdvanced12 minProLINUX-119An fstab automount hides the real mount failure until the first customer request hits the pathBoot looks clean, yet the outage begins later because the failing dependency is deferred behind on-demand mounting.LinuxIntermediate15 minProLINUX-160A backup restore repopulates ACLs correctly, but default ACL inheritance on the parent directory is missing and new files drift immediatelyRecovered state looks right at first, yet the future behavior of the directory no longer matches the original design.LinuxAdvanced16 minProLINUX-399A restored permission model looks right (Permission Denied)A restored permission model looks right (Permission Denied) focuses on Linux Storage and Filesystems and asks the reader to isolate Permission Denied. 실무에서는 linux-identity-and-access 문제를 볼 때 서비스 로그만 보지 말고 inode, 파일시스템 여유, 포트 점유, systemd 상태, 최근 패키지 변경까지 같이 확인해야 원인을 빨리 좁힐 수 있습니다.LinuxAdvanced16 minProLINUX-152A thin pool autoextend threshold is correct, but the monitoring alert watches data percent while metadata is the first resource to exhaustOperators think storage headroom is fine until metadata starvation freezes writes.LinuxAdvanced16 minProLINUX-147A readonly bind mount protects the app config, but a late remount from a maintenance script flips the parent mount writable againDefense in depth existed, yet a broader filesystem action implicitly changed the narrower protection.LinuxAdvanced17 minPro