A valid transfer path forre-using iSCSI cardsduring a controller upgrade is from aFlashArray//XR2 to a FlashArray//XR3(Option A).
Hardware Continuity:The FlashArray//XR2 and //XR3 generations share a high degree of physical component compatibility, particularly regarding PCIe form factors and supported interface cards.
Upgrade Workflow:When performing an "Intra-Series" upgrade (refreshing just the controllers from R2 to R3 to gain CPU performance), the existing I/O cards (Fibre Channel or iSCSI) from the R2 chassis can typically be transferred directly into the new R3 controllers.
Legacy Limitations:Migrating cards from a much olderFlashArray//M(Option B or C) is generally restricted. The //M series often used older generation PCIe cards or different form factors (like onboard risers) that are not validated or physically compatible with the modern PCIe slots found in the //X series. Therefore, for //M to //X upgrades, new I/O cards are usually required, whereas R2 > R3 supports reuse.
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