Compression ratio after HANA Migration.

Hi Team,
I am working on HANA migration and as part of this I would like to know the compression ratio before and after migration.
Please guide me how to calculate the compression ratio.
Thanks in advance.
Best Regards,
Raj.

Hello Raj,
As far as i know the compression ratio is usually calculated as
{The size of the ERP base table in "GB"  divided by 5 and then double the number} for  headroom needed for internal Hana operational activities.
Regards,
Krishna.

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    alter VIEW OBT_AA.CUN_ITEM_NETWORK_UNITS_V compile;
    alter VIEW OBT_AA.PA_FCST_PERIODIC_HDR_V compile;
    alter VIEW OBT_AA.PA_FCST_PERIODIC_DTL_V compile;
    alter VIEW OBT_AA.OTA_FINANCE_LINES_V compile;
    alter VIEW OBT_AA.PA_ADW_LOWTSK_ACT_CMT_V compile;
    alter VIEW OBT_AA.OKL_EBIZ_KHEADERS_V compile;
    alter VIEW OBT_AA.OKL_CURE_RFND_VND_DTLS_UV compile;
    alter VIEW OBT_AA.OKL_CURE_CONTRACT_UV compile;
    alter VIEW OBT_AA.OKL_BPD_RECEIPT_ASSET_UV compile;
    alter VIEW OBT_AA.OKL_BPD_RECEIPT_APPLIC_UV compile;
    alter VIEW OBT_AA.CUN_ASSET_ADDITIONS_UNITS_V compile;
    alter VIEW OBT_AA.ICX_PO_ACTION_HISTORY_PK_V compile;
    alter VIEW OBT_AA.CST_PAC_WIP_TXN_V compile;
    alter VIEW OBT_AA.PO_RELEASE_XML compile;
    alter VIEW OBT_AA.PO_RELEASE_ARCHIVE_XML compile;
    alter VIEW OBT_AA.PO_LINE_LOCATIONS_XML compile;
    alter VIEW OBT_AA.PO_LINE_LOCATIONS_ARCHIVE_XML compile;
    alter VIEW OBT_AA.PO_LINES_XML compile;
    alter VIEW OBT_AA.PO_LINES_ARCHIVE_XML compile;
    alter VIEW OBT_AA.PO_HEADERS_XML compile;
    alter VIEW OBT_AA.OTFV_FINANCE_LINES compile;
    alter VIEW OBT_AA.PO_HEADERS_ARCHIVE_XML compile;
    alter VIEW OBT_AA.OKL_BPD_AP_DISB_DTL_LN_UV compile;
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    alter VIEW OBT_AA.OKL_AEL_GL_AST_V compile;
    alter VIEW OBT_AA.CUN_PROJECT_SHIPMENT_V compile;
    alter VIEW OBT_AA.PO_POS_ALL_V compile;
    alter VIEW OBT_AA.PA_PROJ_COMMITMENT_STATUS compile;
    alter VIEW OBT_AA.OKL_VP_AGREEMENT_UV compile;
    alter VIEW OBT_AA.OKL_TRX_HEADER_UV compile;
    alter VIEW OBT_AA.OKL_FA_DIST_UV compile;
    alter VIEW OBT_AA.PO_DOCUMENT_HEADERS_VIEW compile;
    alter VIEW OBT_AA.PO_ACTION_HISTORY_V compile;
    alter VIEW OBT_AA.OKL_BPD_AP_DISB_DTLS_UV compile;
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    alter VIEW OBT_AA.CUN_TRANSACTION_HIST_V compile;
    alter VIEW OBT_AA.CUN_ITEM_SUMMARY_V compile;
    alter VIEW OBT_AA.CE_CP_DISC_CLOSE_V compile;
    alter VIEW OBT_AA.PA_RPT_PRJ_SUMMARY compile;
    alter VIEW OBT_AA.PA_RPT_CUST_SUMMARY compile;
    alter VIEW OBT_AA.PA_PROJECT_LISTS_PORTLET_V compile;
    alter VIEW OBT_AA.PA_FCST_PROJECT_HDR_V compile;
    alter VIEW OBT_AA.PA_FCST_PROJECT_SUM_V compile;
    alter VIEW OBT_AA.PA_FCST_PROJECT_DTL_V compile;
    alter VIEW OBT_AA.PA_FCST_PERIODIC_SUM_V compile;
    alter VIEW OBT_AA.PA_ADW_TOPTSK_ACT_CMT_V compile;
    alter VIEW OBT_AA.OKL_CURE_REFUNDS_DTLS_UV compile;
    alter VIEW OBT_AA.OKL_OUTSTANDING_CURE_UV compile;
    alter VIEW OBT_AA.OKL_CURE_RULE_UV compile;
    alter VIEW OBT_AA.OKL_AP_TRX_LINE_UV compile;
    alter VIEW OBT_AA.OKL_AP_DIST_UV compile;
    alter VIEW OBT_AA.CUN_ASSET_UNITS_V compile;
    alter VIEW OBT_AA.GMS_COMMITMENT_TXNS_V compile;
    alter VIEW OBT_AA.GMS_STATUS_PROJ_GENERIC_V compile;
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    alter VIEW OBT_AA.WIP_EAM_REQUIREMENTS_ALL_V compile;
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    alter VIEW OBT_AA.XLA_PSA_PO_ENC_BC_GL_V compile;
    alter VIEW OBT_AA.PA_STATUS_COMMITMENTS_V compile;
    alter VIEW OBT_AA.XLA_WIP_AEL_GL_V compile;
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    alter VIEW OBT_AA.XLA_PO_AEL_SL_V compile;
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    alter VIEW OBT_AA.XLA_PO_AEL_SL_MRC_V compile;
    alter VIEW OBT_AA.XLA_PO_AEL_GL_V compile;
    alter VIEW OBT_AA.XLA_PO_AEL_GL_PAC_V compile;
    alter VIEW OBT_AA.XLA_INV_AEL_SL_V compile;
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    alter VIEW OBT_AA.RCV_ENTER_RECEIPTS_SUP_INT_V compile;
    alter VIEW OBT_AA.PO_TAX_SHIPMENTS_DETAIL_V compile;
    alter VIEW OBT_AA.PO_TAX_CODES_SUMMARY_V compile;
    alter VIEW OBT_AA.RCV_ENTER_RECEIPTS_INTERNAL_V compile;
    alter VIEW OBT_AA.PO_RFQS_VAL_V compile;
    alter VIEW OBT_AA.PN_INDEX_EXCLUDE_TERM_V compile;
    alter VIEW OBT_AA.PO_RFQS_ALL_V compile;
    alter VIEW OBT_AA.PA_STATUS_PROJ_TOTALS_V compile;
    alter VIEW OBT_AA.PA_SST_VIEW_PROJECTS_TASKS_V compile;
    alter VIEW OBT_AA.PA_RPT_PRJ_SUMMARY_BASE_V compile;
    alter VIEW OBT_AA.PA_RPT_CUST_SUMMARY_BASE_V compile;
    alter VIEW OBT_AA.PA_REP_PROJ_SP_PA_V compile;
    alter VIEW OBT_AA.PA_REP_PROJ_SP_GL_V compile;
    alter VIEW OBT_AA.PA_INV_BURDEN_DETAILS_LM_V compile;
    alter VIEW OBT_AA.PA_ADW_R_ST_ACT_CMT_V compile;
    alter VIEW OBT_AA.PA_ADW_R_ACT_CMT_V compile;
    alter VIEW OBT_AA.PA_ADW_ACT_CMT_V compile;
    alter VIEW OBT_AA.OKL_REFUND_UV compile;
    alter VIEW OBT_AA.OKL_K_VENDOR_PROGRAMS_UV compile;
    alter VIEW OBT_AA.OKL_C_V_RULES_UV compile;
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    alter VIEW OBT_AA.OKL_CURE_VENDOR_PROGRAM_UV compile;
    alter VIEW OBT_AA.OKL_CS_ALL_PARTIES_W_AMOUNT_UV compile;
    alter VIEW OBT_AA.OKL_BPD_DISB_CONTRACT_LOV_UV compile;
    alter VIEW OBT_AA.GMS_STATUS_COMMITMENTS_V compile;
    alter VIEW OBT_AA.CUN_ITEMS_V compile;
    alter VIEW OBT_AA.CSP_REQUIRED_PARTS_V compile;
    alter VIEW OBT_AA.CSP_DC_PARTS_V compile;
    alter VIEW OBT_AA.MRP_SR_RECEIPT_ORG_V compile;
    alter VIEW OBT_AA.MRP_I2_RESCHED_PO_REQ_V compile;
    alter VIEW OBT_AA.RCV_RECEIVERS_UNORDERED_V compile;
    alter VIEW OBT_AA.JG_PO_REL_TAX_LINES_SUMMARY_V compile;
    alter VIEW OBT_AA.PN_TERM_TEMPLATES_V compile;
    alter VIEW OBT_AA.PJM_PROJECT_PROJ_SUMMARY_V compile;
    alter VIEW OBT_AA.PA_REQUIREMENTS_AMG_V compile;
    alter VIEW OBT_AA.PA_REP_RES_CAP_WKD_V compile;
    alter VIEW OBT_AA.PA_REP_RES_AVL_WK_V compile;
    alter VIEW OBT_AA.PA_PROJ_SUMMARY_AMOUNTS_V compile;
    alter VIEW OBT_AA.PA_PROJ_COMMITMENT_BASE_VIEW compile;
    alter VIEW OBT_AA.PA_REP_ASMT_DTS_V compile;
    alter VIEW OBT_AA.PA_PROJ_ASSIGNMENTS_AMG_V compile;
    alter VIEW OBT_AA.PA_PROJECT_OPEN_ASSNS_STAFF_V compile;
    alter VIEW OBT_AA.PA_PROJECT_OPEN_ASSNS_V compile;
    alter VIEW OBT_AA.PA_PROJECT_LISTS_USER_V compile;
    alter VIEW OBT_AA.PA_PROJECT_ASSIGNMENTS_V compile;
    alter VIEW OBT_AA.PA_FCST_PROJECT_LIST_V compile;
    alter VIEW OBT_AA.PA_PROJECTS_CUST_360_V compile;
    alter VIEW OBT_AA.PA_C_RES_DETAILS_V compile;
    alter VIEW OBT_AA.OKL_FUND_REQ_HEADERS_UV compile;
    alter VIEW OBT_AA.OKL_CURE_REFUNDS_SUMRY_UV compile;
    alter VIEW OBT_AA.OKL_CURE_VENDOR_SUMRY_UV compile;
    alter VIEW OBT_AA.OKL_BPD_DISB_LOV_UV compile;
    alter VIEW OBT_AA.AP_EXPENSE_REPORT_HISTORY_V compile;
    alter VIEW OBT_AA.OKC_K_ATE_V compile;
    alter VIEW OBT_AA.AX_MTL_MATERIAL_TRANS_CONV_V2 compile;
    alter VIEW OBT_AA.AHL_OSP_ORDER_LINES_V compile;
    alter VIEW OBT_AA.OKC_KOL_ATTACHMENTS_V compile;
    alter VIEW OBT_AA.AMW_EXPORT_PROCESS_V compile;
    alter VIEW OBT_AA.OKI_K_CONTACTS_V compile;
    alter VIEW OBT_AA.OKE_K_ALL_ACCESS_V compile;
    alter VIEW OBT_AA.OKC_KOL_SEARCH_KHEADERS_V compile;
    alter VIEW OBT_AA.ICX_REQ_SUPPLIERS_V compile;
    alter VIEW OBT_AA.ICX_REQ_DIST_HEADER_V compile;
    alter VIEW OBT_AA.ICX_PO_RFQ_LINE_LOC_V compile;
    alter VIEW OBT_AA.ICX_PO_REQ_HEADERS_V compile;
    alter VIEW OBT_AA.ICX_PO_REQS_BY_USERS_V compile;
    alter VIEW OBT_AA.ICX_AP_EXPENSE_LINES_V compile;
    alter VIEW OBT_AA.ICX_ENG_WEB_SCHEDULE_PO_V compile;
    alter VIEW OBT_AA.ICX_PO_OPEN_REQS_BY_USERS_V compile;
    alter VIEW OBT_AA.GMS_COMMITMENT_BURDEN_V compile;
    alter VIEW OBT_AA.GMS_1034_REPORT_V compile;
    alter VIEW OBT_AA.FV_ECS_PAYMENT_V compile;
    alter VIEW OBT_AA.FII_AP_IVSR_INV_SOURCE_LCV compile;
    alter VIEW OBT_AA.EAM_DIRECT_ITEM_RECS_V compile;
    alter VIEW OBT_AA.ECE_PO_PROJECT_INFO_V compile;
    alter VIEW OBT_AA.CST_PAC_AEL_SL_WIP_V compile;
    alter VIEW OBT_AA.CST_AEL_SL_WIP_V compile;
    alter VIEW OBT_AA.CE_REVERSAL_TRANSACTIONS_V compile;
    alter VIEW OBT_AA.CHV_SCHEDULERS_VAL_V compile;
    alter VIEW OBT_AA.CE_RECONCILED_TRANSACTIONS_V compile;
    alter VIEW OBT_AA.CE_AVAILABLE_TRANSACTIONS_V compile;
    alter VIEW OBT_AA.CE_FC_API_DISC_V compile;
    alter VIEW OBT_AA.AMW_EXPORT_AUDIT_PROCEDURE_V compile;
    alter VIEW OBT_AA.AP_AEL_SL_V compile;
    alter VIEW OBT_AA.MRP_SCATP_SOURCES_V compile;
    alter VIEW OBT_AA.MRP_I2_PROCUREMENT_V compile;
    alter VIEW OBT_AA.MRP_I2_PART_SUPPLIER_V compile;
    alter VIEW OBT_AA.IGI_CIS_PMT_VCH_V compile;
    alter VIEW OBT_AA.XTR_AP_OPEN_TRX_V compile;
    alter VIEW OBT_AA.WIP_OSP_REQS_POS_V compile;
    alter VIEW OBT_AA.WIP_ICX_OSP_WORKBENCH_V compile;
    alter VIEW OBT_AA.WIP_BIS_PROD_VAL_EMP_V compile;
    alter VIEW OBT_AA.REQ_ENC_AEL_GL_V compile;
    alter VIEW OBT_AA.RCV_VIEW_INTERFACE_V compile;
    alter VIEW OBT_AA.RCV_MSH_V compile;
    alter VIEW OBT_AA.RCV_AEL_SL_MRC_V compile;
    alter VIEW OBT_AA.RCV_ENTER_RECEIPTS_INVENTORY_V compile;
    alter VIEW OBT_AA.RCV_AEL_SL_V compile;
    alter VIEW OBT_AA.RCV_ENTER_RECEIPTS_INT_REQ_V compile;
    alter VIEW OBT_AA.RCV_AEL_GL_V compile;
    alter VIEW OBT_AA.PSA_REQ_ENC_GL_BC_V compile;
    alter VIEW OBT_AA.PO_REQEXPRESS_LINES_V compile;
    alter VIEW OBT_AA.PO_RFQ_HEADERS_PRINT compile;
    alter VIEW OBT_AA.PO_REQS_IN_TRANSIT_ALL_V compile;
    alter VIEW OBT_AA.PO_NOTIFICATION_DETAILS_V compile;
    alter VIEW OBT_AA.PO_HEADERS_PRINT compile;
    alter VIEW OBT_AA.PO_HEADERS_CHANGE_PRINT compile;
    alter VIEW OBT_AA.ITG_UPDEL_LINES_V compile;
    alter VIEW OBT_AA.ITG_UPDEL_HEADERS_V compile;
    alter VIEW OBT_AA.ITG_SP_REL_PART_SOLDTO_V compile;
    alter VIEW OBT_AA.ITG_SP_REL_LINE_PART_SHIPTO_V compile;
    alter VIEW OBT_AA.ITG_SP_REL_LINE_DIST_V compile;
    alter VIEW OBT_AA.ITG_SP_PO_PART_SOLDTO_V compile;
    alter VIEW OBT_AA.ITG_SP_PO_LINE_PART_SHIPTO_V compile;
    alter VIEW OBT_AA.ITG_SP_PO_LINE_DIST_V compile;
    alter VIEW OBT_AA.ITG_REQ_LINES_V compile;
    alter VIEW OBT_AA.ITG_REQ_HEADERS_V compile;
    alter VIEW OBT_AA.ITG_PO_LINE_LOC_ARCH_V compile;
    alter VIEW OBT_AA.ITG_PO_HEADER_ARCH_V compile;
    alter VIEW OBT_AA.ITG_PO_DISTRBN_ARCH_V compile;
    alter VIEW OBT_AA.INVFV_MOVEMENT_STATISTICS compile;
    alter VIEW OBT_AA.IGI_MPP_SELECTED_INVOICES_V compile;
    alter VIEW OBT_AA.IGI_MPP_EXP_RECOGNITION compile;
    alter VIEW OBT_AA.IGI_MPP_AP_DIST_MERGE_V compile;
    alter VIEW OBT_AA.IGI_MPP_AP_INVOICES_MERGE_V compile;
    alter VIEW OBT_AA.IGI_EXP_AVAILABLE_TRX_V compile;
    alter VIEW OBT_AA.IGI_EXP_DU_LINES_V compile;
    alter VIEW OBT_AA.IGC_CC_HEADERS_V compile;
    alter VIEW OBT_AA.ICX_SHIP_SCHEDULE_HEADERS_V compile;
    alter VIEW OBT_AA.ICX_RECEIPT_HEADERS_V compile;
    alter VIEW OBT_AA.ICX_RCV_TRANSACTIONS_V compile;
    alter VIEW OBT_AA.ICX_RCV_RETURNS_V compile;
    alter VIEW OBT_AA.ICX_RCV_REJECTED_ITEMS_V compile;
    alter VIEW OBT_AA.ICX_RCV_EARLY_LATE_RECEIPTS_V compile;
    alter VIEW OBT_AA.ICX_RCV_ACCEPTED_ITEMS_V compile;
    alter VIEW OBT_AA.POS_ACK_SELECT_V compile;
    alter VIEW OBT_AA.POR_VIEW_REQS_BY_GROUP_V compile;
    alter VIEW OBT_AA.POR_VIEW_REQS_BY_APPROVER_V compile;
    alter VIEW OBT_AA.POR_RECEIVE_ORDERS_V compile;
    alter VIEW OBT_AA.POR_RCV_RETURN_TO_VENDOR_V compile;
    alter VIEW OBT_AA.POR_VIEW_LINE_DETAILS_V compile;
    alter VIEW OBT_AA.POR_LINES_ALL_V compile;
    alter VIEW OBT_AA.PN_PAYMENT_TERMS_V compile;
    alter VIEW OBT_AA.PN_PAYMENT_TERMS_HISTORY_V compile;
    alter VIEW OBT_AA.PN_EXP_PAYMENT_ITEMS_V compile;
    alter VIEW OBT_AA.PA_TXN_ACCUM_V compile;
    alter VIEW OBT_AA.PA_TEMPLATE_REQUIREMENTS_V compile;
    alter VIEW OBT_AA.PA_STATUS_EI_V compile;
    alter VIEW OBT_AA.PA_STATUS_PROJ_V compile;
    alter VIEW OBT_AA.PA_STATUS_PROJ_GENERIC_V compile;
    alter VIEW OBT_AA.PA_REV_BURDEN_DETAILS_V compile;
    alter VIEW OBT_AA.PA_SECURED_PROJECTS_V compile;
    alter VIEW OBT_AA.PA_REP_RES_SCHHRS_WKD_V compile;
    alter VIEW OBT_AA.PA_REP_REQT_DTS_V compile;
    alter VIEW OBT_AA.PA_REP_RES_SCHHRS_PAD_V compile;
    alter VIEW OBT_AA.PA_REP_RES_SCHHRS_GLD_V compile;
    alter VIEW OBT_AA.PA_REP_PROJ_REQHRS_WKD_V compile;
    alter VIEW OBT_AA.PA_REP_PROJ_REQHRS_WK_V compile;
    alter VIEW OBT_AA.PA_REP_PROJ_REQHRS_PA_V compile;
    alter VIEW OBT_AA.PA_REP_PROJ_REQHRS_PAD_V compile;
    alter VIEW OBT_AA.PA_REP_PROJ_REQHRS_GL_V compile;
    alter VIEW OBT_AA.PA_REP_PROJ_REQHRS_GLD_V compile;
    alter VIEW OBT_AA.PA_QUERY_RES_LIST_MEMBERS_V compile;
    alter VIEW OBT_AA.PA_PRVDR_CC_ORG_REL_V compile;
    alter VIEW OBT_AA.PA_PROJ_UNBILLED_EXPEND_VIEW compile;
    alter VIEW OBT_AA.PA_PROJ_PARTIES_PROG_EV_V compile;

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    Is this because of old mobile me accounts even those that were just trials that are messing with apple cloud syncing? I have turned everything off and short of deleting my yahoo account I'm not sure what to try next!

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