When dealing with massive storage volumes, filesystem checks (fsck) can indeed become a long-running operation. For a 30TB volume, the duration depends on multiple factors:

• Filesystem type (ext4, XFS, ZFS, etc.)
• Disk hardware (HDD vs SSD, RAID configuration)
• Filesystem corruption level
• System resources allocated to the task

Here's what we typically see in production environments:

# ext4 fsck benchmark (approximate)
30TB HDD array: 2-7 days (healthy) to 2-3 weeks (corrupted)
30TB SSD array: 6-48 hours (healthy) to 3-5 days (corrupted)

# XFS repair (xfs_repair) benchmark
30TB volume: Typically 1-3 days regardless of health status

# ZFS scrub time
30TB pool: 8-24 hours for healthy pools

Several indicators suggest something is wrong:

1. Communication breakdown: No updates since February is unacceptable for any professional hosting provider
2. Lack of transparency: They should provide fsck progress metrics (phases completed, current operation)
3. No contingency plan: For critical systems, they should have offered data migration to a working volume

Demand these technical details to verify their claims:

# For ext* filesystems
cat /proc/fs/ext4/[device]/es_shrinker_info
grep -i fsck /var/log/messages

# For XFS
xfs_info /dev/[device]
journalctl -u xfs_scrub

# General system status
ps aux | grep fsck
iostat -x 1

Consider these technical and business responses:

The most probable scenarios are either catastrophic hardware failure they're not disclosing, or gross incompetence in managing large storage systems. In either case, you should initiate data migration immediately.

When dealing with 30TB volumes, fsck's runtime depends on several technical factors:

# Typical fsck execution flow for large volumes:
1. Superblock verification
2. Group descriptor checks
3. Block bitmap validation 
4. Inode table scans
5. Directory structure verification
6. Journal replay (if journaling filesystem)

Different filesystems exhibit vastly different fsck behaviors:

# Performance comparison (estimated times per TB):
ext4:      1-5 hours/TB (linear scaling)
XFS:       Never runs fsck (journal recovers in seconds)
ZFS:       Seconds to minutes (checksum verification)
Btrfs:     Highly variable (depends on tree complexity)

For an ext4 filesystem at this scale, several factors could contribute:

# Potential bottlenecks in fsck execution
- Fragmented metadata blocks causing random I/O
- Slow storage media (HDDs vs SSDs)
- Insufficient RAM for caching metadata
- Parallelism limitations in e2fsck
- Journal replay requiring full scan
- Bad sectors triggering retries

Based on sysadmin reports from large-scale deployments:

# Documented fsck times for large volumes:
16TB ext4 (HDD): 72 hours
24TB ext4 (SSD): 28 hours 
30TB XFS (HDD): 17 seconds (journal recovery)

Several aspects suggest potential misrepresentation:

if (fsck_duration > reasonable_threshold) {
    check_for_hardware_failure();
    verify_actual_progress();
    consider_filesystem_conversion();
}

Technical steps to verify the claim:

# Commands to request from provider:
1. tune2fs -l /dev/sdX (verify filesystem type)
2. dmesg | grep -i fsck (check kernel logs)
3. ps aux | grep fsck (verify active process)
4. smartctl -a /dev/sdX (check disk health)