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출처 / 참고: Linux man-pages (vgcfgrestore(8), vgcfgbackup(8), pvcreate(8)), Red Hat Enterprise Linux Logical Volume Manager Administration Guide 명령어: vgcfgrestore, vgcfgbackup, pvs, vgs, lvs, pvcreate, vgchange 키워드: LVM, Volume Group, Metadata corrupted, vgcfgrestore, /etc/lvm/archive, UUID mismatch, Couldn’t find device with uuid, PActive 사용처...

출처 / 참고: Red Hat Enterprise Linux 8/9 DM Multipath Configuration and Administration, Linux man-pages (multipath.conf(5), multipathd(8)) 명령어: multipath, multipathd, iostat, dmsetup, cat, systemctl 키워드: DM-Multipath, I/O Hang, queue_if_no_path, no_path_retry, dev_loss_tmo, fast_io_fail_tmo, path_checker, D-state 사용처: SAN/iSCSI 스토리지의 모든 경로가 일시...

출처 / 참고: Brocade Fabric OS Troubleshooting and Diagnostics Guide, Linux Kernel Documentation (SCSI Target ALUA Mode), VMware Broadcom Knowledge Base (Interpreting SCSI sense codes - KB 2899) 명령어: systool, multipath, dmesg, cat, grep, lspci 키워드: Fibre Channel, SAN Switch, HBA, CRC error, ALUA, Active-Optimized, Active-Non-Optimized, SFP degr...

출처 / 참고: Linux man-pages (iscsiadm(8), iscsid.conf(5)), VMware Broadcom Knowledge Base (Troubleshooting iSCSI LUN connectivity - KB 1003952), IETF RFC 3720 (Internet Small Computer Systems Interface) 명령어: iscsiadm, ping, traceroute, ip, systemctl, esxcli 키워드: iSCSI, iscsiadm, Discovery failed, Connection refused, IQN, Jumbo Frame, MTU 9000,...

출처 / 참고: Linux man-pages (mount.cifs(8), smb.conf(5)), Microsoft Protocol Documentation (MS-SMB2 - Server Message Block Protocol Versions 2 and 3), Samba Documentation (Locking and Oplocks) 명령어: smbstatus, mount.cifs, ss, dmesg, lsof, tcpdump 키워드: Samba, CIFS, SMB2, SMB3, Oplocks, Lease break, File Lock contention, echo_interval, nobrl, CIF...

출처 / 참고: Linux man-pages (rsync(1), getfacl(1), setfacl(1)), Sambas rsync performance tuning documentation 명령어: rsync, iostat, xargs, parallel, getfacl, setfacl, ionice 키워드: rsync, NAS sync, I/O Bottleneck, Permission Denied, ACL loss, –numeric-ids, parallel rsync, –inplace, whole-file 사용처: 수백만 개 대용량 NAS/NFS 데이터 마이그레이션 중 전송 속도 저하, 스토리지 과부하(...

출처 / 참고: Linux man-pages (nfs(5), mount(8), umount(8)), IETF RFC 7530 (Network File System (NFS) Version 4 Protocol - Section 8.4.4.1 Filehandle Inspection) 명령어: umount, fuser, lsof, mount, showmount, rpcdebug, cat 키워드: NFS, ESTALE, Stale file handle, Error 116, D state, umount -l, umount -f, nfsstat, fsid, exportfs 사용처: NAS/NFS 공유 디렉터리 접근 ...