General-purpose v1 and legacy blob-only accounts retire on October 13. Anything not moved by then is converted to GPv2 automatically, on Microsoft’s default settings and GPv2 pricing, which can raise transaction-heavy bills. Microsoft is already migrating Databricks-managed DBFS accounts itself. For any team that has not yet inventoried its estate, this week is the last practical window to pick access tiers deliberately rather than inherit them.
TrendForce’s 4Q26 outlook (September 30) puts NAND contract prices up 15–20% QoQ, with enterprise SSD the only category still accelerating and enterprise SSD bit demand up more than 80% this year. That is hyperscaler cost of goods. List prices for object and block storage have not moved, but the pressure argues against any storage price cuts at re:Invent and for more HDD-backed and archive tiering.
Google made end-to-end checksumming the default in Cloud Storage client libraries on September 30, following Storage Intelligence advisor’s GA in September. Azure made Backup for Elastic SAN generally available on September 29. None of these is a headline launch, but together they show the clouds competing on how little operational work it takes to run storage safely, which is where AI-scale estates break first.
Anthropic’s IPO prospectus discloses about $518B of cloud, compute and infrastructure commitments, including a $125.2B five-year TPU lease that Broadcom may finance with up to $42B of notes. Training clusters at that scale bring petabyte-class checkpoint and dataset storage with them. The hyperscaler with the AI anchor tenant gets the storage attach, which favors Google Cloud’s TPU-plus-Rapid Storage stack.
AWS’s recent storage releases were refinements: EBS Volume Clones across accounts, Lambda direct reads from S3 Files, and event-based Object Lock retention. The two open questions this digest has tracked (a public S3 MCP server to match Google’s GA offering, and Azure joining the AWS–Google Cross-Cloud Interconnect) did not move. Expect AWS to save its bigger storage swings for November 30.
With 30TB enterprise SSDs at about 18.6x the price of equivalent nearline HDDs (Vdura Flash Volatility Index, Q3) and Seagate and Western Digital allocating nearline output through 2027 to long-term-contract holders, hybrid flash-plus-disk designs are back in favor. Clouds with large HDD-backed cold tiers and long-term drive agreements are best placed to hold archive pricing flat.
AWS Storage
AWSVolume Clones, launched in October 2025 for same-account copies within an Availability Zone, now extend across AWS accounts with optional re-encryption. The clone is usable within seconds, without the snapshot-and-restore cycle. For multi-account landing zones, which is how most regulated enterprises run AWS, this removes the main friction in refreshing dev, test and analytics environments from production. It also narrows one of Azure’s clearer block-storage advantages, Instant Access snapshots.
AWS News →Lambda functions can now be configured to read either from S3 Files’ high-performance storage layer or straight from the underlying bucket. It is a small control, but it makes S3 Files (the NFS-semantics layer AWS went GA with in April) a first-class serverless data source. Teams can put latency-sensitive inference or ETL on the fast path and leave bulk reads on cheaper bucket access.
AWS Blog →Azure Storage
AZUREMicrosoft’s retirement of general-purpose v1 and legacy blob-only accounts takes effect October 13. Accounts not migrated by then are converted to GPv2 automatically, and transaction-heavy workloads can see higher bills under GPv2 pricing. Databricks-managed DBFS accounts are being migrated by Microsoft ahead of the date. Storage Discovery, now GA, is the inventory tool Microsoft points to. The decision left for customers is whether they choose access tiers and redundancy or accept Microsoft’s defaults.
Microsoft Learn →Elastic SAN, Azure’s managed cloud SAN, now has native, generally available protection through Azure Backup. That closes a gap that had kept some SAN-migration projects on third-party backup tooling. It makes Elastic SAN a more credible landing zone for on-premises SAN estates, especially Microsoft’s own database workloads, as VMware-exit and SAN-refresh programs keep moving to the cloud.
Azure Updates →GCP Storage
GCPGoogle made automated end-to-end checksumming the default for object reads and writes across Cloud Storage client libraries, so integrity is checked from client to bucket without opt-in code. At AI scale, where training corpora and checkpoints run to petabytes and a silently corrupted shard can waste a run, this is a practical reliability feature. It also lets Google argue that its client stack is safer by default than hand-rolled S3 SDK usage.
Cloud Storage Release Notes →Storage Intelligence advisor is now generally available for monitoring Cloud Storage across organizations, folders and projects, with curated metrics, automated anomaly detection and recommendations. It follows September 3’s batch-operations expansion (CEL object filters, up to 1,000 buckets per job, bulk storage-class transitions, dry runs). Together they are GCP’s answer to S3 Storage Lens plus Batch Operations, aimed at cost governance across large, multi-project estates.
Cloud Storage Release Notes →Industry
CROSS-CLOUDTrendForce’s 4Q26 forecast has NAND contracts up 15–20% QoQ, with enterprise SSD the only category still accelerating, as U.S. cloud providers raise their purchase forecasts. Hyperscalers buy flash on long-term agreements, but this is still rising cost of goods for every SSD-backed tier (EBS gp3/io2, Premium SSD v2, Hyperdisk). Expect list prices to hold rather than fall, and more aggressive steering toward HDD-backed and archive classes.
TrendForce →The first public financials from a frontier AI lab put multi-year infrastructure obligations at about $518B. The largest disclosed piece is a five-year TPU capacity lease that Broadcom may help finance with up to $42B of convertible notes. Storage follows the accelerators: dataset, checkpoint and serving storage for clusters this size is a large, long-dated revenue stream. It concentrates in whichever cloud hosts the compute, so AI-lab hosting deals now matter for storage market share.
Fortune →| Metric | EBS gp3 | Premium SSD v2 | pd-balanced |
|---|---|---|---|
| Storage $/GB/mo | $0.08020% cheaper than gp2 | $0.100/GiBHourly billing | $0.100Default disk type |
| Baseline IOPS | 3,000Free — independent of size | 3,000Free — independent of size | 6/GBScales with disk size (500 GB = 3K) |
| Baseline Throughput | 125 MB/sFree — independent of size | 125 MB/sFree — independent of size | 0.28 MB/s/GBScales with disk size |
| IOPS Provisioning | Independent$0.005/IOPS/mo · up to 16K | IndependentSeparately provisionable · up to 80K | Tied to sizeNo independent IOPS control |
| Max IOPS (family) | 256,000io2 Block Express | 400,000Ultra Disk | 120,000pd-extreme |
| Snapshots | Incremental, S3-backedFast Snapshot Restore available | Instant Access (Pv2/Ultra)Instant creation + restore · free until Jul ’26 | IncrementalCloud Storage-backed · regional |
| Dimension | AWS EBS | Azure Managed Disks | GCP Persistent Disk |
|---|---|---|---|
| Price Leader | gp3 at $0.08/GB Cheapest | Pv2 at $0.10/GiB | pd-balanced at $0.10/GB |
| IOPS Flexibility | Independent (gp3) Winner | Independent (Pv2) Winner | Scales with disk size only |
| Latency | io2: sub-ms | Ultra: sub-500µs avg Winner | pd-ssd: single-digit ms |
| Snapshots | Incremental + Fast Restore | Instant Access (Pv2/Ultra) Winner | Incremental, Cloud Storage-backed |
| Shared/Multi-Attach | io2 multi-attach (16 instances) | Broadest: Ultra/Premium/Standard SSD Winner | Multi-writer (up to 2 VMs) |
| Cold Block $/GB | sc1: $0.015/GB Cheapest | Std HDD: ~$0.04/GB | pd-standard: $0.040/GB |
Azure Premium SSD v2 charges $0.0005/IOPS/month above its 3K baseline — that’s 130x cheaper than AWS io2 Block Express ($0.065) and 10x cheaper than AWS gp3 and GCP Hyperdisk ($0.005). At 64,000 IOPS, the gap is staggering: Azure Pv2 costs $30.50/mo for IOPS alone, while AWS io2 charges $4,160/mo and GCP Hyperdisk Extreme charges $640/mo. If your workload is IOPS-intensive and you’re not on Azure, you’re leaving significant money on the table.
| IOPS Level | AWS gp3 | AWS io2 BE | Azure Pv2 | GCP HDB | GCP HD-Ext |
|---|---|---|---|---|---|
| 3,000 | $0 (free) | $195 | $0 (free) | $0 (free) | $30 |
| 10,000 | $35 | $650 | $3.50 | $35 | $100 |
| 64,000 | $305 | $4,160 | $30.50 | $305 | $640 |
| 256,000 | N/A (80K max) | $16,640 | N/A (80K max) | N/A (160K max) | $2,560 |